196-465: The continent of Oceania , sometimes known in technical contexts by the names Sahul ( / s ə ˈ h uː l / ), Australia-New Guinea , Australinea , or Meganesia to distinguish it from the country of Australia , is located within the Southern and Eastern hemispheres. The continent includes mainland Australia , Tasmania , the island of New Guinea ( Papua New Guinea and Western New Guinea ),
392-509: A counterweight to the known landmasses in the Northern Hemisphere. The cartographic depictions of the southern continent in the 16th and early 17th centuries, as might be expected for a concept based on such abundant conjecture and minimal data, varied wildly from map to map; in general, the continent shrank as potential locations were reinterpreted. At its largest, the continent included Tierra del Fuego , separated from South America by
588-646: A maritime border , to the west and southwest across Nares Strait and Baffin Bay, as well as a shared land border on Hans Island ; and Iceland, southeast of Greenland in the Atlantic Ocean. Greenland also contains the world's largest national park , and it is the largest constituent country by area in the world, and is the fourth largest country subdivision in the world , after Sakha Republic in Russia, Australia's state of Western Australia , and Russia's Krasnoyarsk Krai , and
784-472: A multicultural country . Sydney is the most multicultural city in Oceania, having more than 250 different languages spoken, with about 40 percent of residents speaking a language other than English at home. Furthermore, 36 percent of the population reported having been born overseas , with top countries being Italy , Lebanon , Vietnam and Iraq , among others. Melbourne is also fairly multicultural, having
980-468: A series of expeditions to Greenland and Arctic waterways to locate the lost eastern Norse settlement and assert Danish-Norwegian sovereignty over Greenland. The expeditions were mostly unsuccessful, partly due to leaders who lacked experience with the difficult Arctic ice and weather conditions, and partly because the expedition leaders were given instructions to search for the Eastern Settlement on
1176-574: A continent as "a large space of dry land comprehending many countries all joined together, without any separation by water. Thus Europe, Asia, and Africa is one great continent, as America is another." However, the old idea of Europe, Asia and Africa as "parts" of the world ultimately persisted with these being regarded as separate continents. By convention, continents "are understood to be large, continuous, discrete masses of land, ideally separated by expanses of water". In modern schemes with five or more recognized continents, at least one pair of continents
1372-748: A continent in the book, but did note that it was one of the six major divisions of the world. He considered it to encompass the insular Pacific area between Asia and the Americas, and claimed it extended up to the Aleutian Islands , which are among the northernmost islands in the Pacific Ocean. However, definitions of Oceania varied during the 19th century. In the 19th century, many geographers divided up Oceania into mostly racially-based subdivisions; Australasia , Malaysia (encompassing Malay Archipelago ) , Melanesia , Micronesia and Polynesia . Today,
1568-520: A continent. This divides the entire land surface of Earth into continents, regions, or quasi-continents. The criterion that each continent is a discrete landmass is commonly relaxed due to historical conventions and practical use. Of the seven most globally recognized continents, only Antarctica and Australia are completely separated from other continents by the ocean. Several continents are defined not as absolutely distinct bodies but as " more or less discrete masses of land". Africa and Asia are joined by
1764-470: A country within the continent, is one of the most culturally and linguistically diverse countries in the world. It is also one of the most rural, as only 18 percent of its people live in urban centres. West Papua , a region in Indonesia, is home to an estimated 44 uncontacted tribal groups . Australia, the largest landmass in the continent, is highly urbanised , and has the world's 14th-largest economy with
1960-602: A discrete landmass is completely disregarded if the continuous landmass of Eurasia is classified as two separate continents (Asia and Europe). Physiographically , Europe and the Indian subcontinent are large peninsulas of the Eurasian landmass. However, Europe is considered a continent with its comparatively large land area of 10,180,000 square kilometres (3,930,000 sq mi), while the Indian subcontinent, with less than half that area,
2156-425: A geological continent has been disputed by some geologists. However, a study conducted in 2021 found that part of the submerged continent is indeed Precambrian , twice as old as geologists had previously thought, which is further evidence that supports the idea of Zealandia being a geological continent. All seven geological continents are spatially isolated by geologic features. The term "continent" translates
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#17328484131122352-484: A long-standing ally of the United States when threatened by Imperial Japan during World War II . Trade with Asia increased and a post-war immigration program received more than 6.5 million migrants from every continent. Supported by immigration of people from more than 200 countries since the end of World War II, the population increased to more than 23 million by 2014. For about 40 million years Australia–New Guinea
2548-543: A nearby continent to divide all the world's land into geographical regions. Under this scheme, most of the island countries and territories in the Pacific Ocean are grouped together with the continent of Australia to form the geographical region Oceania . In geology , a continent is defined as "one of Earth's major landmasses, including both dry land and continental shelves ". The geological continents correspond to seven large areas of continental crust that are found on
2744-480: A number lost their cultural ties to Greenland. While the policies "succeeded" in the sense of shifting Greenlanders from being primarily subsistence hunters into being urbanized wage earners, the Greenlandic elite began to reassert a Greenlandic cultural identity. A movement developed in favour of independence, reaching its peak in the 1970s. As a consequence of political complications in relation to Denmark's entry into
2940-423: A number of governmental services and areas of competence. The Danish government retains control of citizenship, monetary policy, and foreign affairs, including defence. Most residents of Greenland are Inuit. The population is concentrated mainly on the southwest coast, and the rest of the island is sparsely populated. Three-quarters of Greenland is covered by the only permanent ice sheet outside Antarctica . With
3136-468: A part of South America. Apart from the current continents, the scope and meaning of the term continent includes past geological ones. Supercontinents , largely in evidence earlier in the geological record, are landmasses that comprise most of the world's cratons or continental cores. These have included Vaalbara , Kenorland , Columbia , Rodinia , Pannotia , and Pangaea . Over time, these supercontinents broke apart into large landmasses which formed
3332-715: A part of a very large landmass, as in the case of Asia or Europe. Due to this, the number of continents varies; up to seven or as few as four geographical regions are commonly regarded as continents. Most English-speaking countries recognize seven regions as continents. In order from largest to smallest in area, these seven regions are Asia , Africa , North America , South America , Antarctica , Europe , and Australia . Different variations with fewer continents merge some of these regions; examples of this are merging North America and South America into America , Asia and Europe into Eurasia , and Africa, Asia, and Europe into Afro-Eurasia . Oceanic islands are occasionally grouped with
3528-678: A population of 56,583 (2022), Greenland is the least densely populated region in the world. Sixty-seven percent of its electricity production comes from renewable energy, mostly from hydropower . The early Norse settlers named the island Greenland . In the Icelandic sagas , the Norwegian Erik the Red was exiled from Iceland with his father, Thorvald, who had committed manslaughter. With his extended family and his thralls ( slaves or serfs ) , he set out in ships to explore an icy land known to lie to
3724-513: A relatively mild climate, several degrees Celsius warmer than usual in the North Atlantic with trees and herbaceous plants growing and livestock being farmed. Barley was grown as a crop up to the 70th parallel. The ice cores show that Greenland has had dramatic temperature shifts many times in the past 100,000 years. Similarly the Icelandic Book of Settlements records famines during
3920-489: A result of the COVID-19 pandemic ; one source describes it as being the "biggest economic victim of the coronavirus" (the overall economy did not suffer too severely as of mid-2020, thanks to the fisheries "and a hefty subsidy from Copenhagen"). Greenland's goal for returning tourism is to develop it "right" and to "build a more sustainable tourism for the long run". Greenland is the world's largest non-continental island and
4116-636: A role that is distinct from his position as monarch of the other Commonwealth realms . The King is represented in Australia by the Governor-General at the federal level and by the Governors at the state level, who by convention act on the advice of the government's ministers. There are two major political groups that usually form government, federally and in the states: the Australian Labor Party and
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#17328484131124312-458: A sense of self-reliance through self-government and independent communication with the outside world. Despite this change, in 1946 a commission including the highest Greenlandic council, the Landsrådene , recommended patience and no radical reform of the system. Two years later, the first step towards a change of government was initiated when a grand commission was established. A final report (G-50)
4508-460: A separate land. In 1507 Martin Waldseemüller published a world map, Universalis Cosmographia , which was the first to show North and South America as separate from Asia and surrounded by water. A small inset map above the main map explicitly showed for the first time the Americas being east of Asia and separated from Asia by an ocean, as opposed to just placing the Americas on the left end of
4704-403: A separate people under international law . Denmark maintains control of foreign affairs and defence matters. Denmark upholds the annual block grant of 3.2 billion Danish kroner, but as Greenland begins to collect revenues of its natural resources, the grant will gradually be diminished. This is generally considered to be a step toward eventual full independence from Denmark. Greenlandic
4900-551: A small strait; New Guinea ; and what would come to be called Australia. In 1606, Dutch navigator Willem Janszoon made the first documented European sight and landing on the continent of Australia in Cape York Peninsula . Dutch explorer Abel Janszoon Tasman circumnavigated and landed on parts of the Australian continental coast and discovered Van Diemen's Land (now Tasmania ), New Zealand in 1642, and Fiji islands. He
5096-791: A third part of the world. Division into three parts eventually came to predominate. From the Greek viewpoint, the Aegean Sea was the center of the world; Asia lay to the east, Europe to the north and west, and Africa to the south. The boundaries between the continents were not fixed. Early on, the Europe–Asia boundary was taken to run from the Black Sea along the Rioni River (known then as the Phasis ) in Georgia . Later it
5292-615: A unique fauna , flora and mycobiota developed. Marsupials and monotremes also existed on other continents, but only in Australia–New Guinea did they out-compete the placental mammals and come to dominate. New Guinea has 284 species and six orders of mammals: monotremes, three orders of marsupials, rodents and bats ; 195 of the mammal species (69%) are endemic. New Guinea has a rich diversity of coral life and 1,200 species of fish have been found. Also about 600 species of reef-building coral—the latter equal to 75 percent of
5488-502: A very large peninsula on the fringe of a continent. Where the Americas are viewed as a single continent (America), it is divided into two subcontinents ( North America and South America ) or three ( Central America being the third). When Eurasia is regarded as a single continent, Asia and Europe are treated as subcontinents. Some areas of continental crust are largely covered by the ocean and may be considered submerged continents . Notable examples are Zealandia , emerging from
5684-517: Is Nuuk . Greenland lies between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago . It is the world's largest island , and is the location of the northernmost point of land in the world – Kaffeklubben Island off the northern coast is the world's northernmost undisputed point of land , and Cape Morris Jesup on the mainland was thought to be so until
5880-548: Is 2,166,086 km (836,330 sq mi) (including other offshore minor islands), of which the Greenland ice sheet covers 1,755,637 km (677,855 sq mi) (81%) and has a volume of approximately 2,850,000 km (680,000 cu mi). The highest point on Greenland is Gunnbjørn Fjeld at 3,700 m (12,100 ft) of the Watkins Range ( East Greenland mountain range ). The majority of Greenland, however,
6076-704: Is a North American island autonomous territory of the Kingdom of Denmark . It is the larger of two autonomous territories within the Kingdom, the other being the Faroe Islands ; the citizens of both territories are full citizens of Denmark . As Greenland is one of the Overseas Countries and Territories of the European Union , citizens of Greenland are European Union citizens . The capital and largest city of Greenland
Australia (continent) - Misplaced Pages Continue
6272-493: Is an English creole language spoken in Papua New Guinea. Papua New Guinea has more languages than any other country, with over 820 indigenous languages, representing 12% of the world's total, but most have fewer than 1,000 speakers. Since 1945, more than 7 million people have settled in Australia. From the late 1970s, there was a significant increase in immigration from Asian and other non-European countries, making Australia
6468-572: Is associated with seasonal abnormality in many areas in the world. Australia is one of the continents most affected and experiences extensive droughts alongside considerable wet periods. Christianity is the predominant religion in the continent, although large proportions of Australians belong to no religion . Other religions in the region include Islam , Buddhism and Hinduism , which are prominent minority religions in Australia. Traditional religions are often animist , found in New Guinea. Islam
6664-451: Is considered a subcontinent. The alternative view—in geology and geography—that Eurasia is a single continent results in a six-continent view of the world. Some view the separation of Eurasia into Asia and Europe as a residue of Eurocentrism : "In physical, cultural and historical diversity, China and India are comparable to the entire European landmass, not to a single European country. [...]." However, for historical and cultural reasons,
6860-435: Is divided into several principal oceanic components by the continents and various geographic criteria. The geological definition of a continent has four criteria: high elevation relative to the ocean floor; a wide range of igneous, metamorphic and sedimentary rocks rich in silica; a crust thicker than the surrounding oceanic crust; and well-defined limits around a large enough area. The most restricted meaning of continent
7056-501: Is inhabited by more numerous people and animals than our Europe, or Asia or Africa", the first known explicit identification of part of the Americas as a continent like the other three. Within a few years, the name "New World" began appearing as a name for South America on world maps, such as the Oliveriana (Pesaro) map of around 1504–1505. Maps of this time, though, still showed North America connected to Asia and showed South America as
7252-430: Is joined by land in some fashion. The criterion "large" leads to arbitrary classification: Greenland , with a surface area of 2,166,086 square kilometres (836,330 sq mi), is only considered the world's largest island, while Australia , at 7,617,930 square kilometres (2,941,300 sq mi), is deemed the smallest continent. Earth's major landmasses all have coasts on a single, continuous World Ocean , which
7448-461: Is less than 1,500 m (4,900 ft) in elevation. Below the ice there is a series of canyons, the biggest called Greenland’s Grand Canyon which was formed by flowing rivers of water from the repeated cycle of ice melting and new ice forming. Near the coast elevations rise suddenly and steeply. The ice flows generally to the coast from the centre of the island. A survey led by French scientist Paul-Emile Victor in 1951 concluded that, under
7644-770: Is low compared with other countries (over one million species have been described worldwide). The sea is rich in fish and invertebrates, especially in the milder West Greenland Current ; a large part of the Greenland fauna is associated with marine-based food chains, including large colonies of seabirds. The few native land mammals in Greenland include the polar bear , reindeer (introduced by Europeans), arctic fox , arctic hare , musk ox , collared lemming , ermine , and arctic wolf . The last four are found naturally only in East Greenland , having immigrated from Ellesmere Island . There are dozens of species of seals and whales along
7840-423: Is not part of any municipality, but it is the site of the world's largest national park, Northeast Greenland National Park . At least four scientific expedition stations and camps had been established on the ice sheet in the ice-covered central part of Greenland (indicated as pale blue in the adjacent map): Eismitte , North Ice , North GRIP Camp and The Raven Skiway. There is a year-round station Summit Camp on
8036-698: Is otherwise the same as the UN definition, and it is also used for statistical purposes. In countries such as Argentina , Brazil , China , Chile , Costa Rica , Ecuador , France , Greece , Italy , Mexico , the Netherlands , Peru , Spain , Switzerland or Venezuela , Oceania is treated as a continent in the sense that it is "one of the parts of the world", and Australia is only seen as an island nation. In other countries, including Kazakhstan , Poland and Russia , Australia and Eurasia are thought of as continents, while Asia, Europe and Oceania are regarded as "parts of
Australia (continent) - Misplaced Pages Continue
8232-602: Is that of a continuous area of land or mainland, with the coastline and any land boundaries forming the edge of the continent. In this sense, the term continental Europe (sometimes referred to in Britain as "the Continent") is used to refer to mainland Europe, excluding islands such as Great Britain , Iceland , Ireland , and Malta , while the term continent of Australia may refer to the mainland of Australia , excluding New Guinea , Tasmania , and other nearby islands. Similarly,
8428-727: Is the highest mountain . The Australian continent and Sunda were points of early human migrations after leaving Africa. Recent research points to a planned migration of hundreds of people using bamboo rafts, which eventually landed on Sahul. Indigenous Australians , that is Aboriginal Australians and Torres Strait Islanders people, are the original inhabitants of the Australian continent and nearby islands. They migrated from Africa to Asia around 70,000 years ago and arrived in Australia at least 50,000 years ago, based on archaeological evidence. More recent research points to earlier arrival, possibly 65,000 years ago. They are believed to be among
8624-445: Is too often confused with Australia ." Some 19th century definitions of Oceania grouped Australia, New Zealand and the islands of Melanesia together under the label of Australasia , in other 19th century definitions of Oceania, the term was only used to refer to Australia itself, with New Zealand being categorized with the islands of Polynesia in such definitions. Archaeological terminology for this region has changed repeatedly. Before
8820-407: Is usually considered an island of Africa, but its divergent evolution has caused it to be referred to as "the eighth continent" from a biological perspective. Geologists use four key attributes to define a continent: With the addition of Zealandia in 2017, Earth currently has seven recognized geological continents: Due to a seeming lack of Precambrian cratonic rocks, Zealandia's status as
9016-470: Is widespread in the Indonesian New Guinea . Many Papuans combine their Christian faith with traditional indigenous beliefs and practices . " Aboriginal Australian languages ", including the large Pama–Nyungan family, " Papuan languages " of New Guinea and neighbouring islands, including the large Trans–New Guinea family, and " Tasmanian languages " are generic terms for the native languages of
9212-497: The Skrælings (Norse word for Inuit, meaning "wretches" ). Recent archeological studies somewhat challenge the general assumption that the Norse colonization had a dramatic negative environmental effect on the vegetation. Data support traces of a possible Norse soil amendment strategy. More recent evidence suggests that the Norse, who never numbered more than about 2,500, gradually abandoned
9408-453: The continental United States refers to "the 49 States (including Alaska but excluding Hawaii ) located on the continent of North America, and the District of Columbia ." From the perspective of geology or physical geography , continent may be extended beyond the confines of continuous dry land to include the shallow, submerged adjacent area (the continental shelf ) and the islands on
9604-570: The Americas . The UN's definition of Oceania utilizes four of the five subregions from the 19th century; Australasia , Melanesia , Micronesia , and Polynesia . They include American Samoa , Australia and their external territories , the Cook Islands , Easter Island ( Chile ), the Federated States of Micronesia , French Polynesia , Fiji , Galapagos Islands ( Ecuador ), Guam , Kiribati ,
9800-736: The Aru Islands , the Ashmore and Cartier Islands , most of the Coral Sea Islands , and some other nearby islands . Situated in the geographical region of Oceania , Australia is the smallest of the seven traditional continents . The continent includes a continental shelf overlain by shallow seas which divide it into several landmasses—the Arafura Sea and Torres Strait between mainland Australia and New Guinea, and Bass Strait between mainland Australia and Tasmania. When sea levels were lower during
9996-517: The Atlantic meridional overturning circulation , or AMOC, by diluting key currents, slowing it down. Due to this meltwater input, the circulation may even collapse outright, with widespread detrimental effects, although research suggests this is only likely if highest possible warming is sustained for multiple centuries. Greenland ice sheet has a great volume of ~2,900,000 cubic kilometres (696,000 cu mi). This means that if it were all to melt,
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#173284841311210192-453: The Australian magpie , Australian raven , the pied currawong , crested pigeons and the laughing kookaburra . The koala , emu , platypus and kangaroo are national animals of Australia, and the Tasmanian devil is also one of the well-known animals in the country. The goanna is a predatory lizard native to the Australian mainland . As the continent drifted north from Antarctica,
10388-656: The Black Sea . The names were first applied just to lands near the coast and only later extended to include the hinterlands . But the division was only carried through to the end of navigable waterways and "... beyond that point the Hellenic geographers never succeeded in laying their finger on any inland feature in the physical landscape that could offer any convincing line for partitioning an indivisible Eurasia ..." Ancient Greek thinkers subsequently debated whether Africa (then called Libya ) should be considered part of Asia or
10584-703: The Coalition which is a formal grouping of the Liberal Party and its minor partner, the National Party . Within Australian political culture, the Coalition is considered centre-right and the Labor Party is considered centre-left . Papua New Guinea is a Commonwealth realm . As such, King Charles III is its sovereign and head of state. The constitutional convention, which prepared the draft constitution, and Australia,
10780-696: The European Economic Community (EEC) upon achieving self-rule, as it did not agree with the EEC's commercial fishing regulations and an EEC ban on seal skin products. Greenland voters approved a referendum on greater autonomy on 25 November 2008. According to one study, the 2008 vote created what "can be seen as a system between home rule and full independence". On 21 June 2009, Greenland gained self-rule with provisions for assuming responsibility for self-government of judicial affairs , policing, and natural resources . Also, Greenlanders were recognized as
10976-559: The Gweagal , who he fired upon, injuring one. His expedition became the first recorded Europeans to have encountered the eastern coastline of Australia. Captain Arthur Phillip led the First Fleet of 11 ships and about 850 convicts into Sydney on 26 January 1788. This was to be the location for the new colony. Phillip described Sydney Cove as being "without exception the finest harbour in
11172-596: The Isthmus of Suez , and North America and South America by the Isthmus of Panama . In both cases, there is no complete separation of these landmasses by water (disregarding the Suez Canal and the Panama Canal , which are both narrow and shallow, as well as human-made). Both of these isthmuses are very narrow compared to the bulk of the landmasses they unite. North America and South America are treated as separate continents in
11368-553: The Last Glacial Maximum about 18,000 BC, they were connected by dry land. During the past 18,000 to 10,000 years, rising sea levels overflowed the lowlands and separated the continent into today's low-lying arid to semi-arid mainland and the two mountainous islands of New Guinea and Tasmania. The continental shelf connecting the islands, half of which is less than 50 metres (160 ft) deep, covers some 2.5 million square kilometres (970,000 sq mi), including
11564-571: The Malay Archipelago is typically considered part of Southeast Asia , and the term Oceania is often used to denote the region encompassing the Australian continent, Zealandia , and various islands in the Pacific Ocean that are not included in the seven-continent model. It has been recognized by the United Nations as one of the world's five major continental divisions since its foundation in 1947, along with Africa , Asia , Europe and
11760-965: The Marshall Islands , Nauru , New Caledonia , New Zealand , Niue , the Northern Mariana Islands , Ogasawara ( Japan ), Palau , Papua New Guinea , Pitcairn Islands , Samoa , the Solomon Islands , Tokelau , Tonga , Tuvalu , Vanuatu , Wallis and Futuna , Western New Guinea , and the United States Minor Outlying Islands ( Baker Island , Howland Island , Jarvis Island , Midway Atoll , Palmyra Atoll , and Wake Island ) as well as Hawaii , one of 50 states of United States. The original UN definition of Oceania from 1947 included these same countries and semi-independent territories, which were mostly still colonies at that point. The island states of Indonesia , Japan ,
11956-572: The National Gallery of Victoria in Melbourne are the oldest and largest museums in the continent, as well as in Oceania . Sydney's New Year's Eve celebrations are the largest in the continent. Continent A continent is any of several large geographical regions. Continents are generally identified by convention rather than any strict criteria. A continent could be a single landmass or
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#173284841311212152-456: The Pacific Ocean , as well as the continent of Australia . Zealandia (a submerged continent ) has been called the eighth continent. The following table provides areas given by Encyclopædia Britannica for each continent in accordance with the seven-continent model, including Australasia along with Melanesia , Micronesia , and Polynesia as parts of Oceania. It also provides populations of continents according to 2021 estimates by
12348-622: The Philippines , Singapore and Taiwan , all located within the bounds of the Pacific or associated marginal seas , are excluded from the UN definition. The states of Hong Kong and Malaysia , located in both mainland Asia and marginal seas of the Pacific, are also excluded, as is the nation of Brunei , which shares the island of Borneo with Indonesia and Malaysia. Further excluded are East Timor and Indonesian (or Western) New Guinea , areas which are biogeographically or geologically associated with
12544-512: The Pleistocene ice ages , greater areas of the continental shelf were exposed as dry land, forming land bridges between Tasmania and the Australian mainland . At those times, Australia and New Guinea were a single, continuous continent known as Sahul . Likewise, Afro-Eurasia and the Americas were joined by the Bering Land Bridge . Other islands, such as Great Britain , were joined to
12740-438: The Pleistocene ice age , including the Last Glacial Maximum about 18,000 BC, they were connected by dry land into the combined landmass of Sahul . The name "Sahul" derives from the Sahul Shelf , which is a part of the continental shelf of the Australian continent. During the past 18,000 to 10,000 years, rising sea levels overflowed the lowlands and separated the continent into today's low-lying arid to semi-arid mainland and
12936-499: The Sahul Shelf and Bass Strait . Geological forces such as tectonic uplift of mountain ranges or clashes between tectonic plates occurred mainly in Australia's early history, when it was still a part of Gondwana . Australia is situated in the middle of the tectonic plate, and therefore currently has no active volcanism. The continent primarily sits on the Indo-Australian Plate. Because of its central location on its tectonic plate, Australia does not have any active volcanic regions,
13132-493: The Sahul Shelf , which is part of the continental shelf of the Australian continent. The term Oceania , originally a "great division" of the world in the 1810s, was replaced in English language countries by the concept of Australia as one of the world's continents in the 1950s. Prior to the 1950s, before the popularization of the theory of plate tectonics , Antarctica , Australia and Greenland were sometimes described as island continents, but none were usually taught as one of
13328-436: The Skaergaard intrusion . Notable rock provinces ( metamorphic igneous rocks, ultramafics, and anorthosites) are found on the southwest coast at Qeqertarsuatsiaat. East of Nuuk, the banded iron ore region of Isukasia, over three billion years old, contains the world's oldest rocks, such as greenlandite (a rock composed predominantly of hornblende and hyperthene), formed 3.8 billion years ago, and nuummite. In southern Greenland,
13524-418: The United Kingdom , Canada , Germany , and France in terms of purchasing power parity . The Australian Securities Exchange in Sydney is the largest stock exchange in Australia and in the South Pacific . In 2012, Australia was the 12th largest national economy by nominal GDP and the 19th-largest measured by PPP-adjusted GDP. Tourism in Australia is an important component of the Australian economy. In
13720-420: The United Nations (UN) on 10 October 1975. Migration brought large numbers of southern and central Europeans to Australia for the first time. A 1958 government leaflet assured readers that unskilled non-British migrants were needed for "labour on rugged projects ...work which is not generally acceptable to Australians or British workers". Australia fought on the side of Britain in the two world wars and became
13916-502: The United Nations Statistics Division based on the United Nations geoscheme , which includes all of Egypt (including the Isthmus of Suez and the Sinai Peninsula ) as a part of Africa, all of Armenia, Azerbaijan, Cyprus, Georgia, Indonesia, Kazakhstan, and Turkey (including East Thrace ) as parts of Asia, all of Russia (including Siberia ) as a part of Europe, all of Panama and the United States (including Hawaii ) as parts of North America, and all of Chile (including Easter Island ) as
14112-480: The earliest human migrations out of Africa . There is evidence of genetic and linguistic interchange between Australians in the far north and the Austronesian peoples of modern-day New Guinea and the islands, but this may be the result of recent trade and intermarriage . The earliest known human remains were found at Lake Mungo , a dry lake in the southwest of New South Wales. Remains found at Mungo suggest one of
14308-422: The tectonic plates , but exclude small continental fragments such as Madagascar that are generally referred to as microcontinents . Continental crust is only known to exist on Earth. The idea of continental drift gained recognition in the 20th century. It postulates that the current continents formed from the breaking up of a supercontinent ( Pangaea ) that formed hundreds of millions of years ago. From
14504-526: The world's most liveable city list, and is a leading financial centre in the Asia-Pacific region. Papua New Guinea is rich in natural resources, which account for two-thirds of their export earnings. Though PNG is filled with resources, the lack of country's development led foreign countries to take over few sites and continued foreign demand for PNG's resources and as a result, the United States constructed an oil company and began to export in 2004 and this
14700-483: The "subcontinents" concerned are on different tectonic plates from the rest of the continent, providing a geological justification for the terminology. Greenland , generally considered the world's largest island on the northeastern periphery of the North American Plate , is sometimes referred to as a subcontinent. This is a significant departure from the more conventional view of a subcontinent as comprising
14896-430: The 13th century and later, and are not primary sources for the history of early Norse Greenland. Those accounts are closer to primary for more contemporaneous accounts of late Norse Greenland. Modern understanding therefore mostly depends on the physical data from archeological sites. Interpretation of ice-core and clam-shell data suggests that between AD 800 and 1300 the regions around the fjords of southern Greenland had
15092-625: The 16th century the English noun continent was derived from the term continent land , meaning continuous or connected land and translated from the Latin terra continens . The noun was used to mean "a connected or continuous tract of land" or mainland . It was not applied only to very large areas of land—in the 17th century, references were made to the continents (or mainlands) of the Isle of Man , Ireland and Wales and in 1745 to Sumatra . The word continent
15288-551: The 1920s suggest that the condition of human bones from this period indicates that the Norse population was malnourished, possibly because of soil erosion resulting from the Norsemen's destruction of natural vegetation in the course of farming, turf-cutting, and wood-cutting. Malnutrition may also have resulted from widespread deaths from pandemic plague; the decline in temperatures during the Little Ice Age; and armed conflicts with
15484-411: The 1960s. Though a part of the continent of North America, Greenland has been politically and culturally associated with Europe (specifically Norway and Denmark, the colonial powers) for more than a millennium, beginning in 986. Greenland has been inhabited at intervals over at least the last 4,500 years by circumpolar peoples whose forebears migrated there from what is now Canada. Norsemen settled
15680-517: The 1970s, the single Pleistocene landmass was called Australasia , derived from the Latin australis , meaning "southern", although this word is most often used for a wider region that includes lands like New Zealand that are not on the same continental shelf. In the early 1970s, the term Greater Australia was introduced for the Pleistocene continent. Then at a 1975 conference and consequent publication,
15876-486: The 2021 event, rain fell at Greenland's highest point for the first time in recorded history: an event so unexpected that the research station at the summit had no rain gauges for the occasion. As with the ice losses elsewhere, the melting of Greenland contributes to sea level rise. Between 2012 and 2017, this melting had added an average of 0.68 mm per year, which was equivalent to 37% of sea level rise from land ice sources (excluding thermal expansion of water from
16072-408: The 5th century on maps by Macrobius , who uses the term Australis on his maps. Terra Australis , a hypothetical continent first posited in antiquity , appeared on maps between the 15th and 18th centuries. Scientists, such as Gerardus Mercator (1569) and Alexander Dalrymple as late as 1767 argued for its existence, with such arguments as that there should be a large landmass in the south as
16268-523: The Americas, Columbus never believed he had reached a new continent—he always thought it was part of Asia. In 1501, Amerigo Vespucci and Gonçalo Coelho attempted to sail around what they considered the southern end of the Asian mainland into the Indian Ocean , passing through Fernando de Noronha . After reaching the coast of Brazil , they sailed along the coast of South America much farther south than Asia
16464-426: The Australian flora are adaptations to aridity and fire which include scleromorphy and serotiny . These adaptations are common in species from the large and well-known families Proteaceae ( Banksias and Grevilleas ), Myrtaceae ( Eucalyptus or gum trees, Melaleucas and Callistemons ), Fabaceae ( Acacia s or wattles), and Casuarinaceae ( Casuarinas or she-oaks), which are typically found in
16660-521: The Australian landmass. This definition of Oceania is used in statistical reports, by the International Olympic Committee , and by many atlases. The CIA World Factbook also categorize Oceania or the Pacific area as one of the world's major continental divisions, but use the term "Australia and Oceania" to refer to the area. Their definition does not include Australia's subantarctic external territory Heard Island and McDonald Islands , but
16856-500: The Australian mainland. The flora of New Guinea is a mixture of many tropical rainforest species with origins in Asia, such as Castanopsis acuminatissima , Lithocarpus spp., elaeocarps , and laurels , together with typically Australasian flora. In the New Guinean highlands, conifers such as Dacrycarpus , Dacrydium , Papuacedrus and Libocedrus are present. For many species,
17052-674: The Black Sea and the Caspian Sea , and the border between Asia and Africa at the isthmus between the Red Sea and the mouth of Lake Bardawil on the Mediterranean Sea . The Roman author Pliny the Elder , writing in the 1st century CE, stated that "The whole globe is divided into three parts, Europe, Asia, and Africa", adding: I shall first then speak of Europe, the foster-mother of that people which has conquered all other nations, and itself by far
17248-666: The Catholic church, began to associate itself with the concept of Europe. Through the Roman period and the Middle Ages , a few writers took the Isthmus of Suez as the boundary between Asia and Africa, but most writers continued to consider it the Nile or the western border of Egypt (Gibbon). In the Middle Ages, the world was usually portrayed on T and O maps , with the T representing the waters dividing
17444-661: The Early Dorset culture emerged in western Greenland and the Independence II culture in northern Greenland. The Dorset culture was the first culture to extend throughout the Greenlandic coastal areas, in the west and the east. It lasted until the total onset of the Thule culture , in AD ;1500. The people of the Dorset culture lived mainly by hunting whales and reindeer . From 986,
17640-494: The Earth, the text claims that the Earth has seven continents and Lord Vishnu Measured the entire universe from his first foot from the land of Earth which has 7 continents. ato devā avantu no yato viṣṇurvicakrame | pṛthivyāḥ saptadhāmabhiḥ || idaṃ viṣṇurvi cakrame tredhā ni dadhe padam | samūḷhamasya pāṃsure || trīṇi padā vi cakrame viṣṇurghopā adābhyaḥ | ato dharmāṇi dhārayan || The Gods be gracious unto us even from
17836-669: The European Common Market in 1972, Denmark began to seek a different status for Greenland, resulting in the Home Rule Act of 1979. This gave Greenland limited autonomy with its own legislature taking control of some internal policies, while the Parliament of Denmark maintained full control of external policies, security, and natural resources. The law came into effect on 1 May 1979. The King of Denmark , Frederik X , remains Greenland's head of state . In 1985, Greenland left
18032-599: The Greek word ἤπειρος , meaning "landmass, terra firma", the proper name of Epirus and later especially used for Asia (i.e. Asia Minor ). The first distinction between continents was made by ancient Greek mariners who gave the names Europe and Asia to the lands on either side of the waterways of the Aegean Sea , the Dardanelles strait, the Sea of Marmara , the Bosporus strait and
18228-447: The Greenland settlements over the 15th century as walrus ivory , the most valuable export from Greenland, decreased in price because of competition with other sources of higher-quality ivory, and that there was actually little evidence of starvation or difficulties. Other explanations of the disappearance of the Norse settlements have been proposed: The Thule people are the ancestors of the current Greenlandic population. No genes from
18424-717: The Illimaussaq alkaline complex consists of pegmatites such as nepheline, syenites (especially kakortokite or naujaite) and sodalite (sodalite-foya). In Ivittuut, where cryolite was formerly mined, there are fluoride -bearing pegmatites. To the north of Igaliku, there are the Gardar alkaline pegmatitic intrusions of augite syenite, gabbro, etc. To the west and southwest are Palaeozoic carbonatite complexes at Kangerlussuaq (Gardiner complex) and Safartoq, and basic and ultrabasic igneous rocks at Uiffaq on Disko Island, where there are masses of heavy native iron up to 25 t (28 short tons) in
18620-657: The Inuit. It is republished in The Norse Atlantic Sagas , by Gwyn Jones. Jones reports that there is also an account of perhaps the same incident, of more doubtful provenance, told by the Norse side. In 1500, King Manuel I of Portugal sent Gaspar Corte-Real to Greenland in search of a Northwest Passage to Asia which, according to the Treaty of Tordesillas , was part of Portugal's sphere of influence. In 1501, Corte-Real returned with his brother, Miguel Corte-Real . Finding
18816-543: The New World (consisting of North America and South America) and the Old World (consisting of Africa, Asia and Europe). In his 1879 book Australasia , British naturalist Alfred Russel Wallace commented that, "Oceania is the word often used by continental geographers to describe the great world of islands we are now entering upon" and that "Australia forms its central and most important feature." He did not explicitly label Oceania
19012-540: The Norse. When it re-established contact with Greenland in the early 17th century, Denmark-Norway asserted its sovereignty over the island. In 1721 a joint mercantile and clerical expedition led by Dano-Norwegian missionary Hans Egede was sent to Greenland, not knowing whether a Norse civilization remained there. This expedition is part of the Dano-Norwegian colonization of the Americas . After 15 years in Greenland, Hans Egede left his son Paul Egede in charge of
19208-510: The Oceanian sub-region known as Australasia , with New Guinea being in Melanesia . The continent includes a continental shelf overlain by shallow seas which divide it into several landmasses—the Arafura Sea and Torres Strait between mainland Australia and New Guinea, and Bass Strait between mainland Australia and Tasmania. When sea levels were lower during the Pleistocene ice age , including
19404-456: The Paleo-Inuit have been found in the present population of Greenland. The Thule culture migrated eastward from what is now known as Alaska around 1000 AD, reaching Greenland around 1300. The Thule culture was the first to introduce to Greenland such technological innovations as dog sleds and toggling harpoons . There is an account of contact and conflict with the Norse population, as told by
19600-546: The South Pacific in the early part of the 16th century. On 23 April 1770, British explorer James Cook made his first recorded direct observation of indigenous Australians at Brush Island near Bawley Point . On 29 April, Cook and crew made their first landfall on the mainland of the continent at a place now known as the Kurnell Peninsula . It is here that James Cook made first contact with an Aboriginal tribe known as
19796-694: The States. With the encouragement of Queensland, in 1884, a British protectorate had been proclaimed over the southern coast of New Guinea and its adjacent islands. British New Guinea was annexed outright in 1888. The possession was placed under the authority of the newly federated Commonwealth of Australia in 1902 and with passage of the Papua Act of 1905, British New Guinea became the Australian Territory of Papua , with formal Australian administration beginning in 1906. The Bombing of Darwin on 19 February 1942
19992-599: The Thule culture, who entered from the north. Norse Greenlanders submitted to Norwegian rule in 1261 under the Kingdom of Norway . The Kingdom of Norway entered a personal union with Denmark in 1380, and from 1397 was a part of the Kalmar Union . The Norse settlements, such as Brattahlíð , thrived for centuries, before disappearing in the 15th century, perhaps at the onset of the Little Ice Age . Except some runic inscriptions,
20188-525: The United States developed a geopolitical interest in Greenland and in 1946 offered to buy the island from Denmark for $ 100,000,000; the Danish rejected the offer. In the 21st century, the United States remains interested in investing in the resource base of Greenland and in tapping hydrocarbons off the Greenlandic coast. In August 2019, the US again proposed to buy the country, prompting premier Kim Kielsen to issue
20384-448: The atlas's editor, commented: In the last two or three decades, global warming has reduced the size of glaciers throughout the Arctic and earlier this year, news sources confirmed what climate scientists already knew: water, not rock, lay beneath this ice bridge on the east coast of Greenland. More islets are likely to appear as the sheet of frozen water covering the world's largest island continues to melt. Some controversy surrounds
20580-537: The basalts. The paleontology of East Greenland is specially rich, with some of the early tetrapods such as the Devonian Acanthostega and Ichthyostega , and unique triassic animals such as the phytosaur Mystriosuchus alleroq and the dinosaurs Issi saaneq and tracks. Greenland is home to two ecoregions: Kalaallit Nunaat high arctic tundra and Kalaallit Nunaat low arctic tundra . There are approximately 700 known species of insects in Greenland, which
20776-414: The concept of a continent may go beyond the continental shelf to include oceanic islands and continental fragments. In this way, Iceland is considered a part of Europe, and Madagascar a part of Africa. Extrapolating the concept to its extreme, some geographers group the Australian continental landmass with other islands in the Pacific Ocean into Oceania , which is usually considered a region rather than
20972-412: The continent are endemic to Australia. This high level of endemism can be attributed to the continent's long geographic isolation, tectonic stability, and the effects of an unusual pattern of climate change on the soil and flora over geological time. Australia and its territories are home to around 800 species of bird; 45% of these are endemic to Australia. Predominant bird species in Australia include
21168-541: The continent other than those of Austronesian family. Predominant languages include English in Australia, Tok Pisin in Papua New Guinea, and Indonesian (Malay) in Indonesian New Guinea. Immigration to Australia have brought overseas languages such as Italian , Greek , Arabic , Filipino , Mandarin , Vietnamese and Spanish , among others. Contact between Austronesian and Papuan resulted in several instances in mixed languages such as Maisin . Tok Pisin
21364-530: The continent. Ancient Greek philosopher Aristotle speculated of a large landmass in the southern hemisphere, saying, "Now since there must be a region bearing the same relation to the southern pole as the place we live in bears to our pole...". His ideas were later expanded by Ptolemy (2nd century AD), who believed that the lands of the Northern Hemisphere should be balanced by land in the south . The theory of balancing land has been documented as early as
21560-552: The continual increase in the ocean heat content ). By the end of the century, the melting of Greenland alone would add between ~ 6 cm ( 2 + 1 ⁄ 2 in) if the temperatures are kept below 2 °C (3.6 °F), to around 13 cm (5 in) if the most intense climate change scenario with ever-increasing greenhouse gas emissions is followed. Under this scenario, the worst case for Greenland melting could reach 33 cm (13 in) of sea level rise equivalent. The large quantities of fresh meltwater also affect
21756-578: The control of the Danish monarch. Norway occupied then-uninhabited eastern Greenland as Erik the Red's Land in July 1931, claiming that it constituted terra nullius . Norway and Denmark agreed to submit the matter in 1933 to the Permanent Court of International Justice , which decided against Norway. Greenland's connection to Denmark was severed on 9 April 1940, early in World War ;II , after Denmark
21952-405: The division into three of what is really a single landmass, a debate that continues nearly two and a half millennia later. Herodotus believed Europe to be larger (at least in width) than the other two continents: I wonder, then, at those who have mapped out and divided the world into Libya, Asia, and Europe; for the difference between them is great, seeing that in length Europe stretches along both
22148-715: The earth'. A. Glucklich adds that 'In the Matsya Purana , for instance, there is a seven-part map of the world ... [it has] one centre, where an immense mountain – Mount Meru (or Maha Meru, Great Meru) – stands ... The continents encircle the mountain in seven concentric circles ... It seems clear that the Himalayas were the approximate location of Mt. Meru and the text is clear that the earth has seven continents. Greenland Greenland ( Greenlandic : Kalaallit Nunaat , pronounced [kalaːɬːit nʉnaːt] ; Danish : Grønland , pronounced [ˈkʁɶnˌlænˀ] )
22344-547: The east coast and Mediterranean climate in the west. The northern parts of the country have a tropical climate . Snow falls frequently on the highlands near the east coast, in the states of Victoria , New South Wales , Tasmania and in the Australian Capital Territory . Temperatures in Australia have ranged from above 50 °C (122 °F) to well below 0 °C (32 °F). Nonetheless, minimum temperatures are moderated. The El Niño-Southern Oscillation
22540-467: The east coast of Greenland just north of Cape Farewell , which is almost inaccessible due to southward drifting ice . The pilot on all three trips was English explorer James Hall . After the Norse settlements died off, Greenland came under the de facto control of various Inuit groups, but the Dano-Norwegian government never forgot or relinquished the claims to Greenland that it had inherited from
22736-640: The executive branch. Since 1788, the primary influence behind Australian culture has been Anglo-Celtic Western culture , with some Indigenous influences. The divergence and evolution that has occurred in the ensuing centuries has resulted in a distinctive Australian culture. Since the mid-20th century, American popular culture has strongly influenced Australia, particularly through television and cinema. Other cultural influences come from neighbouring Asian countries, and through large-scale immigration from non-English-speaking nations. The Australian Museum in Sydney and
22932-568: The existence of a new island was announced. Named " Uunartoq Qeqertaq " (English: Warming Island ), this island has always been present off the coast of Greenland, but was covered by a glacier. This glacier was discovered in 2002 to be shrinking rapidly, and by 2007 had completely melted away, leaving the exposed island. The island was named Place of the Year by the Oxford Atlas of the World in 2007. Ben Keene,
23128-606: The facilities. After the collapse of the Third Reich, Albert Speer briefly considered escaping in a small aeroplane to hide out in Greenland, but changed his mind and decided to surrender to the United States Armed Forces . Greenland had been a protected and very isolated society until 1940. The Danish government had maintained a strict monopoly of Greenlandic trade , allowing no more than small scale barter trading with British whalers. In wartime Greenland developed
23324-461: The few regions close to the equator that experience snowfall , which occurs in the most elevated parts of the mainland. Some areas in the island experience an extraordinary amount of precipitation, averaging roughly 4,500 millimetres (180 in) of rainfall annually. The Australian landmass's climate is mostly desert or semi-arid , with the southern coastal corners having a temperate climate, such as oceanic and humid subtropical climate in
23520-409: The financial year 2014/15, tourism represented 3.0% of Australia 's GDP contributing A$ 47.5 billion to the national economy. In 2015, there were 7.4 million visitor arrivals. Mercer Quality of Living Survey ranks Sydney tenth in the world in terms of quality of living , making it one of the most livable cities . It is classified as an Alpha+ World City by GaWC . Melbourne also ranked highly in
23716-611: The first European to explore the Strait. When Europeans first arrived, inhabitants of New Guinea and nearby islands, whose technologies included bone, wood, and stone tools, had a productive agricultural system. In 1660, the Dutch recognised the Sultan of Tidore 's sovereignty over New Guinea . The first known Europeans to sight New Guinea were probably the Portuguese and Spanish navigators sailing in
23912-447: The global sea levels would increase by ~7.4 m (24 ft) from that alone. However, it also means that it will take at least 1,000 years for the ice sheet to disappear even with very high warming, and in around 10,000 years under lower warming which still crosses the threshold for the ice sheet's disappearance. This threshold likely lies for the global warming between 1.7 °C (3.1 °F) and 2.3 °C (4.1 °F). Reducing
24108-494: The globe. Animal groups such as macropods , monotremes , and cassowaries are endemic to Australia. There were three main reasons for the enormous diversity that developed in animal, fungal and plant life. Although New Guinea is the most northerly part of the continent, and could be expected to be the most tropical in climate, the altitude of the New Guinea highlands is such that a great many animals and plants that were once common across Australia–New Guinea now survive only in
24304-474: The high and rugged mountains of New Guinea and, by reverse (downwards) buckling, the Torres Strait that now separates the two main landmasses. The collision also pushed up the islands of Wallacea , which served as island 'stepping-stones' that allowed plants from Southeast Asia 's rainforests to colonise New Guinea, and some plants from Australia–New Guinea to move into Southeast Asia. The ocean straits between
24500-405: The history of the island, specifically over whether the island might have been revealed during a brief warm period in Greenland during the mid-20th century. Greenland ice sheet always loses some mass from ice calving at its coasts, but it used to gain more ice on average due to the accumulation of snowfall. Yet, Greenland has been warming starting from around 1900, and starting from 1980s,
24696-422: The ice sheet, Greenland is composed of three large islands. This is disputed, but if it is so, they would be separated by narrow straits, reaching the sea at Ilulissat Icefjord , at Greenland's Grand Canyon and south of Nordostrundingen . All towns and settlements of Greenland are situated along the ice-free coast, with the population being concentrated along the west coast. The northeastern part of Greenland
24892-402: The ice sheet, established in 1989. The radio station Jørgen Brønlund Fjord was, until 1950, the northernmost permanent outpost in the world. The extreme north of Greenland, Peary Land , is not covered by an ice sheet, because the air there is too dry to produce snow, which is essential in the production and maintenance of an ice sheet. If the Greenland ice sheet were to melt away completely,
25088-460: The islands were narrow enough to allow plant dispersal, but served as an effective barrier to exchange of land mammals between Australia–New Guinea and Asia. Among the fungi, the remarkable association between Cyttaria gunnii (one of the "golf-ball" fungi) and its associated trees in the genus Nothofagus is evidence of that drift: the only other places where this association is known are New Zealand and southern Argentina and Chile . Due to
25284-464: The largest Greek-speaking population outside of Europe , and the second largest Asian population in Australia after Sydney. Australia is the only First World country on the Australia-New Guinea continent, although the economy of Australia is by far the largest and most dominant economy in the region and one of the largest in the world. Australia's per-capita GDP is higher than that of
25480-522: The largest in North America. The lowest temperature ever recorded in the Northern Hemisphere was recorded in Greenland, near the topographic summit of the Greenland Ice Sheet , on 22 December 1991, when the temperature reached −69.6 °C (−93.3 °F). In Nuuk, the average daily temperature varies over the seasons from −5.1 to 9.9 °C (22.8 to 49.8 °F). The total area of Greenland
25676-541: The long-established broad-leaf deciduous forest began to give way to the distinctive hard-leaved sclerophyllous plants that characterise the modern Australian landscape. Typical Southern Hemisphere flora include the conifers Podocarpus (eastern Australia and New Guinea), the rainforest emergents Araucaria (eastern Australia and New Guinea), Nothofagus (New Guinea and Tasmania ) and Agathis (northern Queensland and New Guinea), as well as tree ferns and several species of Eucalyptus . Prominent features of
25872-479: The losses became larger than the gains. After 1996, Greenland has not had a single year when it did not lose mass on average. In 2010s, Greenland ice sheet had been melting at its fastest rate over at least the past 12,000 years, and on track to exceed that later in the century. In 2012, 2019 and 2021, so-called "massive melting events" had occurred, when practically the entire surface of the ice sheet had been melting and no accumulation had been taking place. During
26068-592: The mainland. Then between about 8,000 and 6,500 BC, the lowlands in the north were flooded by the sea, separating the Aru Islands , mainland Australia, New Guinea , and Tasmania. A northern arc consisting of the New Guinea Highlands , the Raja Ampat Islands , and Halmahera was uplifted by the northward migration of Australia and subduction of the Pacific Plate . The Outer Banda Arc was accreted along
26264-482: The mainlands of their continents. At that time, there were just three discrete landmasses in the world: Africa - Eurasia - America , Antarctica , and Australia - New Guinea ( Sahul ). There are several ways of distinguishing the continents: In the English-speaking countries, geographers often use the term Oceania to denote a geographical region which includes most of the island countries and territories in
26460-429: The map and Asia on the right end. In the accompanying book Cosmographiae Introductio , Waldseemüller noted that the earth is divided into four parts, Europe, Asia, Africa, and the fourth part, which he named "America" after Amerigo Vespucci's first name. On the map, the word "America" was placed on part of South America. The Sanskrit text Rig Veda often dated 1500 BCE has the earliest mention of seven continents in
26656-491: The mid-17th century, Peter Heylin wrote in his Cosmographie that "A Continent is a great quantity of Land, not separated by any Sea from the rest of the World, as the whole Continent of Europe, Asia, Africa." In 1727, Ephraim Chambers wrote in his Cyclopædia, "The world is ordinarily divided into two grand continents: the Old and the New ." And in his 1752 atlas, Emanuel Bowen defined
26852-417: The mission there and returned to Denmark, where he established a Greenland Seminary. This new colony was centred at Godthåb ("Good Hope") on the southwest coast. Gradually, Greenland was opened up to Danish merchants, but closed to those from other countries. When the union between the crowns of Denmark and Norway was dissolved in 1814, the Treaty of Kiel severed Norway's former colonies and left them under
27048-529: The most beauteous portion of the earth. Indeed, many persons have, not without reason, considered it, not as a third part only of the earth, but as equal to all the rest, looking upon the whole of our globe as divided into two parts only, by a line drawn from the river Tanais to the Straits of Gades. Following the fall of the Western Roman Empire , the culture that developed in its place , linked to Latin and
27244-475: The name Australinea in 2004. Australia–New Guinea has also been used. The Australian continent, as a whole being part of the Australian Plate , is the lowest, flattest, and oldest landmass on Earth and it has had a relatively stable geological history. New Zealand is not part of the continent of Australia, but of the separate, submerged continent of Zealandia . New Zealand and Australia are both part of
27440-598: The name Sahul was extended from its previous use for just the Sahul Shelf to cover the continent. In 1984, the name Meganesia was suggested, meaning "great island" or "great island-group", for both the Pleistocene continent and the present-day lands, and this name has been widely accepted by biologists. Others have used Meganesia with different meanings: travel writer Paul Theroux included New Zealand in his definition and others have used it for Australia, New Zealand and Hawaii . Another biologist, Richard Dawkins , coined
27636-431: The name of Oceania. There are thus six great divisions of the earth — Europe , Asia , Africa , North America, South America and Oceania." The American author Samuel Griswold Goodrich wrote in his 1854 book History of All Nations that, "geographers have agreed to consider the island world of the Pacific Ocean as a third continent, under the name Oceania." In this book the other two continents were categorized as being
27832-411: The northwest. After finding a habitable area and settling there, he named it Grœnland (translated as "Greenland"), supposedly in the hope that the pleasant name would attract settlers. The Saga of Erik the Red states: "In the summer, Erik left to settle in the country he had found, which he called Greenland, as he said people would be attracted there if it had a favorable name." The name of
28028-503: The northwestern edge the continent; it includes the islands of Timor , Tanimbar , and Seram . Papua New Guinea has several volcanoes , as it is situated along the Pacific Ring of Fire . Volcanic eruptions are not rare, and the area is prone to earthquakes and tsunamis because of this. Mount Wilhelm in Papua New Guinea is the second highest mountain in the continent, and at 4,884 metres (16,024 ft) above sea level , Puncak Jaya
28224-469: The ocean primarily in New Zealand and New Caledonia , and the almost completely submerged Kerguelen Plateau in the southern Indian Ocean . Some islands lie on sections of continental crust that have rifted and drifted apart from a main continental landmass. While not considered continents because of their relatively small size, they may be considered microcontinents . Madagascar, the largest example,
28420-507: The only contemporary records or historiography that survives from the Norse settlements is of their contact with Iceland or Norway. Medieval Norwegian sagas and historical works mention Greenland's economy, the bishops of Gardar , and the collection of tithes. A chapter in the Konungs skuggsjá ( The King's Mirror ) describes Norse Greenland 's exports, imports, and grain cultivation. Icelandic saga accounts of life in Greenland were composed in
28616-406: The only continent with this distinction. The lands were joined with Antarctica as part of the southern supercontinent Gondwana until the plate began to drift north about 96 million years ago. For most of the time since then, Australia–New Guinea remained a continuous landmass. When the last glacial period ended in about 10,000 BC, rising sea levels formed Bass Strait , separating Tasmania from
28812-452: The others together, and it appears to me to be wider beyond all comparison. Eratosthenes , in the 3rd century BCE, noted that some geographers divided the continents by rivers (the Nile and the Don), thus considering them "islands". Others divided the continents by isthmuses , calling the continents "peninsulas". These latter geographers set the border between Europe and Asia at the isthmus between
29008-427: The outgoing metropolitan power, had thought that Papua New Guinea would not remain a monarchy. The founders, however, considered that imperial honours had a cachet. The monarch is represented by the Governor-General of Papua New Guinea , currently Bob Dadae . Papua New Guinea (along with Solomon Islands ) is unusual among Commonwealth realms in that governors-general are elected by the legislature, rather than chosen by
29204-481: The people in Greenland citizens of Denmark. In the 1979 Greenlandic home rule referendum , Denmark granted home rule to Greenland; in the 2008 Greenlandic self-government referendum , Greenlanders voted for the Self-Government Act, which transferred more power from the Danish government to the local Naalakkersuisut (Greenlandic government). Under this structure, Greenland gradually assumed responsibility for
29400-474: The place whence Vishnu strode Through the seven regions of the earth! Through all this world strode Vishnu; thrice his foot he planted, and the whole Was gathered in his footstep's dust. Vishnu, the Guardian, he whom none deceiveth , made three steps; thenceforth Establishing his high decrees. In regard to the above-quoted verses, it is commonly accepted that there are Seven Continents or 'regions of
29596-488: The present continents. Certain parts of continents are recognized as subcontinents, especially the large peninsulas separated from the main continental landmass by geographical features. The most widely recognized example is the Indian subcontinent . The Arabian Peninsula , Southern Africa , the Southern Cone of South America, and Alaska in North America might be considered further examples. In many of these cases,
29792-525: The primary refuge was the relatively cool and well-watered Great Dividing Range . Even today, pockets of remnant vegetation remain in the cool uplands, some species not much changed from the Gondwanan forms of 60 or 90 million years ago. Eventually, the Australia–New Guinea tectonic plate collided with the Eurasian plate to the north. The collision caused the northern part of the continent to buckle upwards, forming
29988-469: The sea frozen, they headed south and arrived in Labrador and Newfoundland . Upon the brothers' return to Portugal, the cartographic information supplied by Corte-Real was incorporated into a new map of the world which was presented to Ercole I d'Este , Duke of Ferrara , by Alberto Cantino in 1502. The Cantino planisphere , made in Lisbon, accurately depicts the southern coastline of Greenland. In 1605–1607, King Christian IV of Denmark and Norway sent
30184-569: The second-highest human development index globally. Australia also has the world's 9th largest immigrant population . The continent of Oceania is sometimes known by the names Sahul, Australinea, or Meganesia to differentiate it from the country of Australia, and consists of the landmasses which sit on Australia's continental plate. This includes mainland Australia , Tasmania , and the island of New Guinea , which comprises Papua New Guinea and Western New Guinea (Papua and West Papua, provinces of Indonesia ). The name "Sahul" takes its name from
30380-440: The seven-continent model. However, they may also be viewed as a single continent known as America . This viewpoint was common in the United States until World War II , and remains prevalent in some Asian six-continent models. The single American continent model remains a common view in European countries like France, Greece, Hungary, Italy, Malta, Portugal, Spain, Latin American countries and some Asian countries. The criterion of
30576-438: The seventh century, and archipelagic rule of New Guinea by the 13th. At the beginning of the seventh century, the Sumatra -based empire of Srivijaya (7th century–13th century) engaged in trade relations with western New Guinea, initially taking items like sandalwood and birds-of-paradise in tribute to China , but later making slaves out of the natives. The rule of the Java -based empire of Majapahit (1293–1527) extended to
30772-415: The shelf ( continental islands ), as they are structurally part of the continent. From this perspective, the edge of the continental shelf is the true edge of the continent, as shorelines vary with changes in sea level. In this sense the islands of Great Britain and Ireland are part of Europe, while Australia and the island of New Guinea together form a continent. Taken to its limit, this view could support
30968-505: The spread of animals, fungi and plants across the single Pleistocene landmass the separate lands have a related biota . There are over 300 bird species in West Papua , of which at least 20 are unique to the ecoregion, and some live only in very restricted areas. These include the grey-banded munia , Vogelkop bowerbird , and the king bird-of-paradise . Australia has a huge variety of animals; some 83% of mammals , 89% of reptiles , 24% of fish and insects and 93% of amphibians that inhabit
31164-442: The statement, "Greenland is not for sale and cannot be sold, but Greenland is open for trade and cooperation with other countries—including the United States." In 1950, Denmark agreed to allow the US to regain the use of Thule Air Base ; it was greatly expanded between 1951 and 1953 as part of a unified NATO Cold War defence strategy. The local population of three nearby villages was moved more than 100 km (62 miles) away in
31360-451: The system of government changed: Governor Eske Brun ruled the island under a law of 1925 that allowed governors to take control under extreme circumstances; Governor Aksel Svane was transferred to the United States to lead the commission to supply Greenland. The Danish Sirius Patrol guarded the northeastern shores of Greenland in 1942 using dog sleds. They detected several German weather stations and alerted American troops, who destroyed
31556-494: The territory in the Greenlandic language is Kalaallit Nunaat ' land of the Kalaallit ' . The Kalaallit are the Greenlandic Inuit who inhabit the territory's western region. In prehistoric times, Greenland was home to several successive Paleo-Inuit cultures known primarily through archaeological finds. The earliest entry of the Paleo-Inuit into Greenland is thought to have occurred about 2500 BC. From about 2500 BC to 800 BC, southern and western Greenland
31752-473: The third largest area in North America after Canada and the United States. It is between latitudes 59° and 83°N , and longitudes 11° and 74°W . Greenland is bordered by the Arctic Ocean to the north, the Greenland Sea to the east, the North Atlantic Ocean to the southeast, the Davis Strait to the southwest, Baffin Bay to the west, the Nares Strait and Lincoln Sea to the northwest. The nearest countries to Greenland are Canada, with which it shares
31948-410: The three continents. By the middle of the 18th century, "the fashion of dividing Asia and Africa at the Nile, or at the Great Catabathmus [the boundary between Egypt and Libya ] farther west, had even then scarcely passed away". Christopher Columbus sailed across the Atlantic Ocean to the Caribbean in 1492, sparking a period of European exploration of the Americas . But despite four voyages to
32144-416: The tone for the bitter final stages of the New Guinea campaign , which persisted into 1945. The offensives in Papua and New Guinea of 1943–44 were the single largest series of connected operations ever mounted by the Australian armed forces. Following the 1998 commencement of reforms across Indonesia , Papua and other Indonesian provinces received greater regional autonomy. In 2001, "Special Autonomy" status
32340-558: The tropical highlands where they are severely threatened by population growth . In New Guinea, the climate is mostly monsoonal (December to March), southeast monsoon (May to October), and tropical rainforest with slight seasonal temperature variation. In lower altitudes, the temperature is around 27 °C (81 °F) year round. But the higher altitudes, such as Mendi , are constantly around 21 °C (70 °F) with cool lows nearing 11 °C (52 °F), with abundant rainfall and high humidity. The New Guinea Highlands are one of
32536-427: The turn of the 14th century—as much as 6 to 8 °C (11 to 14 °F) lower than modern summer temperatures. The study also found that the lowest winter temperatures of the last 2,000 years occurred in the late 14th century and early 15th century. The Eastern Settlement was probably abandoned in the early to mid-15th century, during this cold period . Theories drawn from archeological excavations at Herjolfsnes in
32732-469: The two mountainous islands of New Guinea and Tasmania. With a total land area of 8.56 million square kilometres (3,310,000 sq mi), the Australian continent is the smallest, lowest, flattest, and second-driest continent (after Antarctica ) on Earth . As the country of Australia is mostly on a single landmass, and comprises most of the continent, it is sometimes informally referred to as an island continent, surrounded by oceans. Papua New Guinea,
32928-432: The uninhabited southern part of Greenland beginning in the 10th century (having previously settled Iceland ), and the 13th century saw the arrival of Inuit . In the early 17th century, Dano-Norwegian explorers reached Greenland again. When Denmark and Norway separated in 1814, Greenland was transferred to the Danish crown, and was fully integrated in the Danish state in 1953 under the Constitution of Denmark , which made
33124-479: The view of Europe as a separate continent continues in almost all categorizations. If continents are defined strictly as discrete landmasses, embracing all the contiguous land of a body, then Africa, Asia, and Europe form a single continent which may be referred to as Afro-Eurasia . Combined with the consolidation of the Americas, this would produce a four-continent model consisting of Afro-Eurasia, America, Antarctica, and Australia. When sea levels were lower during
33320-412: The view that there are only three continents: Antarctica, Australia-New Guinea, and a single mega-continent which joins Afro-Eurasia and America via the contiguous continental shelf in and around the Bering Sea. The vast size of the latter compared to the first two might even lead some to say it is the only continent, the others being more comparable to Greenland or New Zealand. As a cultural construct ,
33516-411: The warming back to 1.5 °C (2.7 °F) above preindustrial levels or lower (such as through large-scale carbon dioxide removal ) would arrest the losses, but still cause greater ultimate sea level rise than if the threshold had never been exceeded. Further, 1.5 °C (2.7 °F) itself appears to commit the ice sheet to 1.4 m ( 4 + 1 ⁄ 2 ft) of sea level rise. The island
33712-411: The west coast was settled by Icelanders and Norwegians , through a contingent of 14 boats led by Erik the Red. They formed three settlements—the Eastern Settlement , the Western Settlement , and the Middle Settlement —on fjords near the southwestern tip of the island. They shared the island with the late Dorset culture inhabitants, who occupied the northern and western parts, and later with those of
33908-463: The western fringes of New Guinea. Recent archaeological research suggests that 50,000 years ago people may have occupied sites in the highlands at New Guinean altitudes of up to 2,000 m (6,600 ft), rather than being restricted to warmer coastal areas. Legends of Terra Australis Incognita—an "unknown land of the South"—date back to Roman times and before, and were commonplace in medieval geography, although not based on any documented knowledge of
34104-400: The winter. The United States tried to construct a subterranean network of secret nuclear missile launch sites in the Greenlandic ice cap, named Project Iceworm . According to documents declassified in 1996, this project was managed from Camp Century from 1960 to 1966 before abandonment as unworkable. The missiles were never fielded, and necessary consent from the Danish Government to do so
34300-421: The winters, in which "the old and helpless were killed and thrown over cliffs". These Norse settlements vanished during the 14th and early 15th centuries. The demise of the Western Settlement coincides with a decrease in summer and winter temperatures. A study of North Atlantic seasonal temperature variability during the Little Ice Age showed a significant decrease in maximum summer temperatures beginning about
34496-541: The world". In 1883, the Colony of Queensland tried to annex the southern half of eastern New Guinea, but the British government did not approve. The Commonwealth of Australia came into being when the Federal Constitution was proclaimed by the Governor-General , Lord Hopetoun , on 1 January 1901. From that point a system of federalism in Australia came into operation, entailing the establishment of an entirely new national government (the Commonwealth government) and an ongoing division of powers between that government and
34692-447: The world". In the Pacific Ocean Handbook (1945), author Eliot Grinnell Mears wrote that he categorized Australia, New Zealand and Pacific islands under the label of Oceania for "scientific reasons; Australia's fauna is largely continental in character, New Zealand's are clearly insular; and neither Commonwealth realm has close ties with Asia." He further added that, "the term Australasia is not relished by New Zealanders and this name
34888-403: The world's sea level would rise by more than 7 m (23 ft). In 2003, a small island, 35 m × 15 m (115 ft × 49 ft) in length and width, was discovered by arctic explorer Dennis Schmitt and his team at the coordinates of 83-42 . Whether this island is permanent is not yet confirmed. If it is, it is the northernmost permanent known land on Earth. In 2007,
35084-406: The world's continents in English-speaking countries. Scottish cartographer John Bartholomew wrote in 1873 that, "the New World consists of North America , and the peninsula of South America attached to it. These divisions [are] generally themselves spoken as continents, and to them has been added another, embracing the large island of Australia and numerous others in the [Pacific] Ocean, under
35280-438: The world's known total. New Guinea has 578 species of breeding birds, of which 324 species are endemic. Bird life also flourished—in particular, the songbirds (order Passeriformes , suborder Passeri) are thought to have evolved 50 million years ago in the part of Gondwana that later became Australia , New Zealand, New Guinea , and Antarctica , before radiating into a great number of different forms and then spreading around
35476-416: The world's oldest known cremations , thus indicating early evidence for religious ritual among humans. Dreamtime remains a prominent feature of Australian Aboriginal art , the oldest continuing tradition of art in the world. Papuan habitation is estimated to have begun between 42,000 and 48,000 years ago in New Guinea. Trade between New Guinea and neighboring Indonesian islands was documented as early as
35672-451: Was almost completely isolated. During this time, the continent experienced numerous changes in climate, but the overall trend was towards greater aridity. When South America eventually separated from Antarctica, the development of the cold Antarctic Circumpolar Current changed weather patterns across the world. For Australia–New Guinea, it brought a marked intensification of the drying trend. The great inland seas and lakes dried out. Much of
35868-451: Was declared the sole official language of Greenland at the historic ceremony. Tourism increased significantly between 2015 and 2019, with the number of visitors increasing from 77,000 per year to 105,000. One source estimated that in 2019 the revenue from this aspect of the economy was about 450 million kroner (US$ 67 million). Like many aspects of the economy, this slowed dramatically in 2020 and into 2021, due to restrictions required as
36064-410: Was extended to Greenlanders. Danish policies toward Greenland consisted of a strategy of cultural assimilation — or de-Greenlandification. During this period, the Danish government promoted the exclusive use of the Danish language in official matters, and required Greenlanders to go to Denmark for their post-secondary education. Many Greenlandic children grew up in boarding schools in southern Denmark, and
36260-532: Was granted to Papua province, although to date, implementation has been partial and often criticised. The region was administered as a single province until 2003, when it was split into the provinces of Papua and West Papua . Elections in 1972 resulted in the formation of a ministry headed by Chief Minister Michael Somare , who pledged to lead the country to self-government and then to independence. Papua New Guinea became self-governing on 1 December 1973 and achieved independence on 16 September 1975. The country joined
36456-424: Was inhabited by the Saqqaq culture . Most finds of remains from that period have been around Disko Bay , including the site of Saqqaq, for which the culture is named. From 2400 BC to 1300 BC, the Independence I culture existed in northern Greenland. It was a part of the Arctic small-tool tradition . Towns, including Deltaterrasserne , appeared. About 800 BC, the Saqqaq culture disappeared and
36652-438: Was known to extend, confirming that this was a land of continental proportions. On return to Europe, an account of the voyage, called Mundus Novus ("New World"), was published under Vespucci's name in 1502 or 1503, although it seems that it had additions or alterations by another writer. Regardless of who penned the words, Mundus Novus credited Vespucci with saying, "I have discovered a continent in those southern regions that
36848-429: Was never sought. The Danish government did not become aware of the programme's mission until 1997, when they discovered it while looking, in the declassified documents, for records related to the crash of a nuclear equipped B-52 bomber at Thule in 1968. With the 1953 Danish constitution, Greenland's colonial status ended as the island was incorporated into the Danish realm as an amt (county). Danish citizenship
37044-705: Was occupied by Nazi Germany . On 8 April 1941, the United States occupied Greenland to defend it against a possible invasion by Germany. The United States' occupation of Greenland continued until 1945. Greenland was able to buy goods from the United States and Canada by selling cryolite from the mine at Ivittuut . In World War II , the United States military used Bluie as a code name for Greenland, where they kept several bases named "Bluie (East or West) (sequential numeral)". The major air bases were Bluie West-1 at Narsarsuaq and Bluie West-8 at Søndre Strømfjord (Kangerlussuaq), both of which are still used as Greenland's major international airports. During this war,
37240-484: Was part of the very ancient Precambrian continent of Laurentia , the eastern core of which forms the Greenland Shield, while the less exposed coastal strips become a plateau. On these ice-free coastal strips are sediments formed in the Precambrian , overprinted by metamorphism and now formed by glaciers, which continue into the Cenozoic and Mesozoic in parts of the island. In the east and west of Greenland there are remnants of flood basalts and igneous intrusions, such as
37436-484: Was presented in 1950, which recommended the introduction of a modern welfare state with Denmark's development as sponsor and model. In 1953, Greenland was made an equal part of the Danish Kingdom. Home rule was granted in 1979. In 1867, United States Secretary of State William H. Seward worked with former senator Robert J. Walker to explore the possibility of buying Greenland and, perhaps, Iceland . Opposition in Congress ended this project. Following World War II,
37632-401: Was the first known European explorer to reach these islands. In the quest for Terra Australis , Spanish explorations in the 17th century, such as the expedition led by the Portuguese navigator Pedro Fernandes de Queirós , discovered the Pitcairn and Vanuatu archipelagos, and sailed the Torres Strait between Australia and New Guinea , named after navigator Luís Vaz de Torres , who was
37828-415: Was the largest project in PNG's history. Papua New Guinea is classified as a developing economy by the International Monetary Fund . Strong growth in Papua New Guinea's mining and resource sector led to the country becoming the sixth fastest-growing economy in the world in 2011. Australia is a federal parliamentary constitutional monarchy with Charles III at its apex as the King of Australia ,
38024-439: Was the largest single attack ever mounted by a foreign power on Australia. In an effort to isolate Australia, the Japanese planned a seaborne invasion of Port Moresby , in the Australian Territory of New Guinea . Between July and November 1942, Australian forces repulsed Japanese attempts on the city by way of the Kokoda Track , in the highlands of New Guinea . The Battle of Buna–Gona , between November 1942 and January 1943, set
38220-417: Was used in translating Greek and Latin writings about the three "parts" of the world, although in the original languages no word of exactly the same meaning as continent was used. While continent was used on the one hand for relatively small areas of continuous land, on the other hand geographers again raised Herodotus's query about why a single large landmass should be divided into separate continents. In
38416-467: Was viewed as running from the Black Sea through Kerch Strait , the Sea of Azov and along the Don River (known then as the Tanais ) in Russia . The boundary between Asia and Africa was generally taken to be the Nile River. Herodotus in the 5th century BCE objected to the whole of Egypt being split between Asia and Africa ("Libya") and took the boundary to lie along the western border of Egypt, regarding Egypt as part of Asia. He also questioned
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