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86-615: The Tâmega River is a tributary of the Douro River . From Verín, it flows south to Portuguese city of Chaves ; then it flows through a fertile valley called the Veiga. Below Chaves the river narrows to pass through mountains and valleys. Owing to low water level and frequent small dams it is not navigable, passing through the cities of Amarante and Marco de Canaveses , flowing in the Douro River, near Entre-os-Rios: in fact Entre-os-Rios means between

172-552: A social science and a branch of the humanities . It is usually considered an independent academic discipline , but may also be classified as part of anthropology (in North America – the four-field approach ), history or geography . Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology

258-464: A basic level of analysis, artifacts found are cleaned, catalogued and compared to published collections. This comparison process often involves classifying them typologically and identifying other sites with similar artifact assemblages. However, a much more comprehensive range of analytical techniques are available through archaeological science , meaning that artifacts can be dated and their compositions examined. Bones, plants, and pollen collected from

344-546: A big impact throughout Europe. However, prior to the development of modern techniques, excavations tended to be haphazard; the importance of concepts such as stratification and context were overlooked. In the mid-18th century, the German Johann Joachim Winckelmann lived in Rome and devoted himself to the study of Roman antiquities, gradually acquiring an unrivalled knowledge of ancient art. Then, he visited

430-401: A clear objective as to what the archaeologists are looking to achieve must be agreed upon. This done, a site is surveyed to find out as much as possible about it and the surrounding area. Second, an excavation may take place to uncover any archaeological features buried under the ground. And, third, the information collected during the excavation is studied and evaluated in an attempt to achieve

516-451: A field survey. Regional survey is the attempt to systematically locate previously unknown sites in a region. Site survey is the attempt to systematically locate features of interest, such as houses and middens , within a site. Each of these two goals may be accomplished with largely the same methods. Survey was not widely practised in the early days of archaeology. Cultural historians and prior researchers were usually content with discovering

602-477: A lack of public interest, and opposition to the excavation of human remains. In Ancient Mesopotamia , a foundation deposit of the Akkadian Empire ruler Naram-Sin (ruled c.  2200 BC ) was discovered and analysed by king Nabonidus , c.  550 BC , who is thus known as the first archaeologist. Not only did he lead the first excavations which were to find the foundation deposits of

688-528: A large region or site can be expensive, so archaeologists often employ sampling methods.) As with other forms of non-destructive archaeology, survey avoids ethical issues (of particular concern to descendant peoples) associated with destroying a site through excavation. It is the only way to gather some forms of information, such as settlement patterns and settlement structure. Survey data are commonly assembled into maps , which may show surface features and/or artifact distribution. The simplest survey technique

774-479: A prosperous tourist industry has developed based on river excursions from Porto to points along the Upper Douro valley. The Douro railway line ( Linha do Douro ) was completed in 1887; it connects Porto, Rio Tinto, Ermesinde, Valongo, Paredes, Penafiel, Livração, Marco de Canaveses, Régua, Tua and Pocinho. Pocinho is near the very small city of Foz Côa, which is close to Côa Valley Paleolithic Art site. This

860-571: A river in Portugal is a stub . You can help Misplaced Pages by expanding it . Douro River The Douro ( UK : / ˈ d ʊər oʊ , ˈ d ʊər uː / , US : / ˈ d ɔːr uː , ˈ d ɔːr oʊ / , Portuguese: [ˈdo(w)ɾu] , Mirandese : [ˈdowɾʊ] ; Spanish : Duero [ˈdweɾo] ; Latin : Durius ) is the largest river of the Iberian Peninsula by discharge. It rises near Duruelo de la Sierra in

946-504: A site excavated depends greatly on the country and "method statement" issued. Sampling is even more important in excavation than in survey. Sometimes large mechanical equipment, such as backhoes ( JCBs ), is used in excavation, especially to remove the topsoil ( overburden ), though this method is increasingly used with great caution. Following this rather dramatic step, the exposed area is usually hand-cleaned with trowels or hoes to ensure that all features are apparent. The next task

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1032-414: A site reveals its stratigraphy; if a site was occupied by a succession of distinct cultures, artifacts from more recent cultures will lie above those from more ancient cultures. Excavation is the most expensive phase of archaeological research, in relative terms. Also, as a destructive process, it carries ethical concerns. As a result, very few sites are excavated in their entirety. Again the percentage of

1118-408: A sole source. The material record may be closer to a fair representation of society, though it is subject to its own biases, such as sampling bias and differential preservation. Often, archaeology provides the only means to learn of the existence and behaviors of people of the past. Across the millennia many thousands of cultures and societies and billions of people have come and gone of which there

1204-527: A stone wall, will develop more slowly, while those above other types of features (such as middens ) may develop more rapidly. Photographs of ripening grain , which changes colour rapidly at maturation, have revealed buried structures with great precision. Aerial photographs taken at different times of day will help show the outlines of structures by changes in shadows. Aerial survey also employs ultraviolet , infrared , ground-penetrating radar wavelengths, Lidar and thermography . Geophysical survey can be

1290-482: A systematic guide to the ruins and topography of ancient Rome in the early 15th century, for which he has been called an early founder of archaeology. Antiquarians of the 16th century, including John Leland and William Camden , conducted surveys of the English countryside, drawing, describing and interpreting the monuments that they encountered. The OED first cites "archaeologist" from 1824; this soon took over as

1376-495: A wide range of influences, including systems theory , neo-evolutionary thought , [35] phenomenology , postmodernism , agency theory , cognitive science , structural functionalism , Marxism , gender-based and feminist archaeology , queer theory , postcolonial thoughts , materiality , and posthumanism . An archaeological investigation usually involves several distinct phases, each of which employs its own variety of methods. Before any practical work can begin, however,

1462-797: Is cognate with modern Breton dour and Cornish dur "water" and results from a later typical Brittonic evolution of *dubro- , unknown in the Continental Celtic languages . The possible origin is the hydronymic root *dur- , which is Pre-Indo-European or Pre-Celtic . Albert Dauzat linked this river name to a Pre-Celtic hydronymic root *dor- , which is well attested in Western Europe : in France Doire , Doron , Douron, etc. and in Italy Dora , etc. The meaning of this element is, however, unknown. A folk-etymological derivation suggests that

1548-558: Is considered important to the archaeological pre-historic patrimony, and it has been designated as a UNESCO World Heritage Site . Fifteen dams have been built on the Douro to regulate the water flow, generate hydroelectric power , and allow navigation through locks . Beginning at the headwaters, the first five dams are in Spain: Cuerda del Pozo , Los Rábanos , San José , Villalcampo and Castro Dams . The next five downstream are along

1634-600: Is distinct from palaeontology , which is the study of fossil remains. Archaeology is particularly important for learning about prehistoric societies, for which, by definition, there are no written records. Prehistory includes over 99% of the human past, from the Paleolithic until the advent of literacy in societies around the world. Archaeology has various goals, which range from understanding culture history to reconstructing past lifeways to documenting and explaining changes in human societies through time. Derived from Greek,

1720-451: Is little or no written record or existing records are misrepresentative or incomplete. Writing as it is known today did not exist in human civilization until the 4th millennium BC, in a relatively small number of technologically advanced civilizations. In contrast, Homo sapiens has existed for at least 200,000 years, and other species of Homo for millions of years (see Human evolution ). These civilizations are, not coincidentally,

1806-426: Is no one approach to archaeological theory that has been adhered to by all archaeologists. When archaeology developed in the late 19th century, the first approach to archaeological theory to be practised was that of cultural-historical archaeology , which held the goal of explaining why cultures changed and adapted rather than just highlighting the fact that they did, therefore emphasizing historical particularism . In

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1892-406: Is planned between the city of Amarante and the town of Mondim de Basto . Besides producing electricity, the project will feature a flood control system that will divert the waterflow towards the smaller Olo River. A 220 MW pumped-storage hydroelectricity facility started operating in 2022, storing 40 GWh of electricity. It cost €1.5 billion. Three more turbines are scheduled for the site, bringing

1978-443: Is reflected or emitted from the observed scene. Passive instruments sense only radiation emitted by the object being viewed or reflected by the object from a source other than the instrument. Active instruments emit energy and record what is reflected. Satellite imagery is an example of passive remote sensing. Here are two active remote sensing instruments: The archaeological project then continues (or alternatively, begins) with

2064-428: Is surface survey. It involves combing an area, usually on foot but sometimes with the use of mechanized transport, to search for features or artifacts visible on the surface. Surface survey cannot detect sites or features that are completely buried under earth, or overgrown with vegetation. Surface survey may also include mini-excavation techniques such as augers , corers, and shovel test pits. If no materials are found,

2150-592: Is through archaeology. Because archaeology is the study of past human activity, it stretches back to about 2.5 million years ago when the first stone tools are found – The Oldowan Industry . Many important developments in human history occurred during prehistory, such as the evolution of humanity during the Paleolithic period, when the hominins developed from the australopithecines in Africa and eventually into modern Homo sapiens . Archaeology also sheds light on many of humanity's technological advances, for instance

2236-431: Is to form a site plan and then use it to help decide the method of excavation. Features dug into the natural subsoil are normally excavated in portions to produce a visible archaeological section for recording. A feature, for example a pit or a ditch, consists of two parts: the cut and the fill . The cut describes the edge of the feature, where the feature meets the natural soil. It is the feature's boundary. The fill

2322-420: Is what the feature is filled with, and will often appear quite distinct from the natural soil. The cut and fill are given consecutive numbers for recording purposes. Scaled plans and sections of individual features are all drawn on site, black and white and colour photographs of them are taken, and recording sheets are filled in describing the context of each. All this information serves as a permanent record of

2408-717: The Aldeadávila Dam impounds the river, there are protected areas: the International Douro Natural Park (on the Portuguese side) and the Arribes del Duero Natural Park (on the Zamoran margin). The Douro fully enters Portuguese territory just after the confluence with the Águeda River ; once the Douro enters Portugal, major population centres are less frequent along the river. Except for Porto and Vila Nova de Gaia at

2494-504: The Douro Valley in Portugal, long devoted to vineyards , has been designated by UNESCO as a World Heritage Site . The wine was taken downriver in flat-bottom boats called rabelos , to be stored in barrels in cellars in Vila Nova de Gaia , just across the river from Porto . Nowadays port is transported there in tanker trucks. In the 1960s and 1970s, dams with locks were built along

2580-483: The Ribera del Duero wine region. Sheep rearing is also still important. The drainage basin borders those of Miño to the north, Ebro to the east, and Tajo to the south. For 112 kilometres (70 mi), the river forms part of the border between Spain and Portugal , in a region of narrow canyons . It formed a historical barrier to invasions, creating a cultural/linguistic divide. In these isolated areas, in which

2666-567: The trench method , on several Native American burial mounds in Virginia . His excavations were prompted by the "Moundbuilders" question ; however, his careful methods led him to admit he saw no reason why ancestors of the Native Americans of his time could not have raised those mounds. One of the major achievements of 19th-century archaeology was the development of stratigraphy . The idea of overlapping strata tracing back to successive periods

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2752-512: The - b -, of which there remains no trace, would not have disappeared, as evidenced by place-names derived from Gaulish *dubron (plural dubra ), such as French Douvres and English Dover (3rd/4th-century Dubris ; Douvres in French), Spanish Dobra, German Tauber ( Dubra-gave 807), and Gaelic/ Old Irish dobur "water" and river name Dobhar in Ireland and Scotland. Modern Welsh dŵr "water"

2838-549: The 1870s. These scholars individuated nine different cities that had overlapped with one another, from prehistory to the Hellenistic period . Meanwhile, the work of Sir Arthur Evans at Knossos in Crete revealed the ancient existence of an equally advanced Minoan civilization . The next major figure in the development of archaeology was Sir Mortimer Wheeler , whose highly disciplined approach to excavation and systematic coverage in

2924-642: The 1920s and 1930s brought the science on swiftly. Wheeler developed the grid system of excavation , which was further improved by his student Kathleen Kenyon . Archaeology became a professional activity in the first half of the 20th century, and it became possible to study archaeology as a subject in universities and even schools. By the end of the 20th century nearly all professional archaeologists, at least in developed countries, were graduates. Further adaptation and innovation in archaeology continued in this period, when maritime archaeology and urban archaeology became more prevalent and rescue archaeology

3010-596: The Douro River are Valladolid and Zamora in Spain, and Porto and Vila Nova de Gaia in Portugal. The latter two are located at the mouth of the Douro at the Atlantic Ocean. In Portugal, the Douro flows through the districts of Bragança , Guarda , Viseu , Vila Real , Aveiro and Porto . Porto is the main hub city in northern Portugal. Its historic centre has been designated as a UNESCO World Heritage Site because of its significant architecture and history. These reaches of

3096-431: The Douro have a mesoclimate allowing for cultivation of olives , almonds , and especially grapes , which are important for making port . The region around Pinhão and São João da Pesqueira is considered to be the centre of port, with its quintas (or farms/estates) that extend along the steep slopes of the river valleys. In the 21st century, many of these are owned by multinational, reputed wine companies. Recently,

3182-541: The Iberian Peninsula after the Tagus and Ebro . Its total length is 897 kilometres (557 mi), of which only sections of the Portuguese section, being below a fall/rapids line, are naturally navigable, by modest rivercraft. The Douro River basin encompasses an area of approximately 97,290 square kilometres. In its Spanish section, the Douro crosses the great Castilian meseta and meanders through five provinces of

3268-516: The Portuguese-Spanish border; the first three are owned and operated by Portugal: ( Miranda , Picote and Bemposta Dams ), while the next two belong to Spain: ( Aldeadávila and Saucelle Dams ). The Douro's last five dams are in Portugal, and allow for navigation: Pocinho , Valeira , Régua , Carrapatelo , and Crestuma–Lever dams. Vessels with a maximum length of 83 metres (272 ft) and width of 11.4 metres (37 ft) can pass through

3354-497: The Song period, were revived in the 17th century during the Qing dynasty , but were always considered a branch of Chinese historiography rather than a separate discipline of archaeology. In Renaissance Europe , philosophical interest in the remains of Greco - Roman civilization and the rediscovery of classical culture began in the late Middle Ages , with humanism . Cyriacus of Ancona

3440-636: The Spanish province of Soria , meanders briefly south, then flows generally west through the northern part of the Meseta Central in Castile and León into northern Portugal . Its largest tributary (carrying more water than the Douro at their confluence) is the right-bank Esla . The Douro flows into the Atlantic Ocean at Porto , the second largest city of Portugal. The scenic Douro railway line runs close to

3526-602: The Spanish military engineer Roque Joaquín de Alcubierre in the ancient towns of Pompeii and Herculaneum , both of which had been covered by ash during the Eruption of Mount Vesuvius in AD 79 . These excavations began in 1748 in Pompeii, while in Herculaneum they began in 1738. The discovery of entire towns, complete with utensils and even human shapes, as well the unearthing of frescos , had

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3612-753: The UK, metal detectorists have been solicited for involvement in the Portable Antiquities Scheme . Regional survey in underwater archaeology uses geophysical or remote sensing devices such as marine magnetometer, side-scan sonar , or sub-bottom sonar. Archaeological excavation existed even when the field was still the domain of amateurs, and it remains the source of the majority of data recovered in most field projects. It can reveal several types of information usually not accessible to survey, such as stratigraphy , three-dimensional structure, and verifiably primary context. Modern excavation techniques require that

3698-426: The ability to use fire, the development of stone tools , the discovery of metallurgy , the beginnings of religion and the creation of agriculture . Without archaeology, little or nothing would be known about the use of material culture by humanity that pre-dates writing. However, it is not only prehistoric, pre-literate cultures that can be studied using archaeology but historic, literate cultures as well, through

3784-408: The archaeological excavations being conducted at Pompeii and Herculaneum . He was one of the founders of scientific archaeology and first applied the categories of style on a large, systematic basis to the history of art He was one of the first to separate Greek art into periods and time classifications. Winckelmann has been called both "The prophet and founding hero of modern archaeology " and

3870-434: The area surveyed is deemed sterile . Aerial survey is conducted using cameras attached to airplanes , balloons , UAVs , or even Kites . A bird's-eye view is useful for quick mapping of large or complex sites. Aerial photographs are used to document the status of the archaeological dig. Aerial imaging can also detect many things not visible from the surface. Plants growing above a buried human-made structure, such as

3956-555: The artifacts they had found in chronological order. A major figure in the development of archaeology into a rigorous science was army officer and ethnologist Augustus Pitt Rivers , who began excavations on his land in England in the 1880s. Highly methodical by the standards of the time, he is widely regarded as the first scientific archaeologist. He arranged his artifacts by type or " Typology (archaeology) ", and within types chronologically. This style of arrangement, designed to highlight

4042-579: The autonomous community of Castile and León : Soria , Burgos , Valladolid , Zamora , and Salamanca , passing through the towns of Soria , Almazán , Aranda de Duero , Tordesillas , and Zamora . The most important tributaries in this region are the Pisuerga , passing through Valladolid , and the Esla , which passes through Zamora . This region is generally semi-arid plains, with wheat and in some places, especially near Aranda de Duero , with vineyards , in

4128-563: The best-known; they are open to the inquiry of historians for centuries, while the study of pre-historic cultures has arisen only recently. Within a literate civilization many events and important human practices may not be officially recorded. Any knowledge of the early years of human civilization – the development of agriculture, cult practices of folk religion, the rise of the first cities – must come from archaeology. In addition to their scientific importance, archaeological remains sometimes have political or cultural significance to descendants of

4214-473: The early 20th century, many archaeologists who studied past societies with direct continuing links to existing ones (such as those of Native Americans , Siberians , Mesoamericans etc.) followed the direct historical approach , compared the continuity between the past and contemporary ethnic and cultural groups. In the 1960s, an archaeological movement largely led by American archaeologists like Lewis Binford and Kent Flannery arose that rebelled against

4300-628: The empirical evidence that existed for the understanding of the past, encapsulated in the motto of the 18th century antiquary, Sir Richard Colt Hoare : "We speak from facts, not theory". Tentative steps towards the systematization of archaeology as a science took place during the Enlightenment period in Europe in the 17th and 18th centuries. In Imperial China during the Song dynasty (960–1279), figures such as Ouyang Xiu and Zhao Mingcheng established

4386-639: The established cultural-history archaeology. They proposed a "New Archaeology", which would be more "scientific" and "anthropological", with hypothesis testing and the scientific method very important parts of what became known as processual archaeology . In the 1980s, a new postmodern movement arose led by the British archaeologists Michael Shanks , Christopher Tilley , Daniel Miller , and Ian Hodder , which has become known as post-processual archaeology . It questioned processualism's appeals to scientific positivism and impartiality, and emphasized

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4472-620: The evolutionary trends in human artifacts, was of enormous significance for the accurate dating of the objects. His most important methodological innovation was his insistence that all artifacts, not just beautiful or unique ones, be collected and catalogued. William Flinders Petrie is another man who may legitimately be called the Father of Archaeology. His painstaking recording and study of artifacts, both in Egypt and later in Palestine , laid down many of

4558-533: The father of the discipline of art history . The father of archaeological excavation was William Cunnington (1754–1810). He undertook excavations in Wiltshire from around 1798, funded by Sir Richard Colt Hoare. Cunnington made meticulous recordings of Neolithic and Bronze Age barrows , and the terms he used to categorize and describe them are still used by archaeologists today. Future U.S. President Thomas Jefferson also did his own excavations in 1784 using

4644-746: The fifteenth century, and the general accuracy of his records entitles him to be called the founding father of modern classical archeology." He traveled throughout Greece and all around the Eastern Mediterranean, to record his findings on ancient buildings, statues and inscriptions, including archaeological remains still unknown to his time: the Parthenon , Delphi , the Egyptian pyramids , the hieroglyphics . He noted down his archaeological discoveries in his diary, Commentaria (in six volumes). Flavio Biondo , an Italian Renaissance humanist historian, created

4730-528: The first history books of India. One of the first sites to undergo archaeological excavation was Stonehenge and other megalithic monuments in England. John Aubrey (1626–1697) was a pioneer archaeologist who recorded numerous megalithic and other field monuments in southern England. He was also ahead of his time in the analysis of his findings. He attempted to chart the chronological stylistic evolution of handwriting, medieval architecture, costume, and shield-shapes. Excavations were also carried out by

4816-602: The five locks . The highest lock, at Carrapatelo Dam, has a maximum lift of 35 metres (115 ft). The waters of Pocinho lake reach 125 metres (410 ft) above sea level. Unannounced releases of water from upstream Spanish dams occasionally causes navigation issues in these locks. Archaeological Archaeology or archeology is the study of human activity through the recovery and analysis of material culture . The archaeological record consists of artifacts , architecture , biofacts or ecofacts, sites , and cultural landscapes . Archaeology can be considered both

4902-468: The ideas behind modern archaeological recording; he remarked that "I believe the true line of research lies in the noting and comparison of the smallest details." Petrie developed the system of dating layers based on pottery and ceramic findings , which revolutionized the chronological basis of Egyptology . Petrie was the first to scientifically investigate the Great Pyramid in Egypt during the 1880s. He

4988-472: The importance of a more self-critical theoretical reflexivity . However, this approach has been criticized by processualists as lacking scientific rigor, and the validity of both processualism and post-processualism is still under debate. Meanwhile, another theory, known as historical processualism , has emerged seeking to incorporate a focus on process and post-processual archaeology's emphasis of reflexivity and history. Archaeological theory now borrows from

5074-444: The lives and interests of the populace. Writings that were produced by people more representative of the general population were unlikely to find their way into libraries and be preserved there for posterity. Thus, written records tend to reflect the biases, assumptions, cultural values and possibly deceptions of a limited range of individuals, usually a small fraction of the larger population. Hence, written records cannot be trusted as

5160-665: The locations of monumental sites from the local populace, and excavating only the plainly visible features there. Gordon Willey pioneered the technique of regional settlement pattern survey in 1949 in the Viru Valley of coastal Peru , and survey of all levels became prominent with the rise of processual archaeology some years later. Survey work has many benefits if performed as a preliminary exercise to, or even in place of, excavation. It requires relatively little time and expense, because it does not require processing large volumes of soil to search out artifacts. (Nevertheless, surveying

5246-720: The most effective way to see beneath the ground. Magnetometers detect minute deviations in the Earth's magnetic field caused by iron artifacts, kilns , some types of stone structures , and even ditches and middens. Devices that measure the electrical resistivity of the soil are also widely used. Archaeological features whose electrical resistivity contrasts with that of surrounding soils can be detected and mapped. Some archaeological features (such as those composed of stone or brick) have higher resistivity than typical soils, while others (such as organic deposits or unfired clay) tend to have lower resistivity. Although some archaeologists consider

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5332-431: The name comes from the Portuguese or Spanish term for "golden". In Roman times, the river was personified as a god, Durius . Part of the drainage basin might have been severely depopulated in the 8th century. According to Claudio Sánchez-Albornoz this was a deliberate act by Alfonso I of Asturias for the defence of his Kingdom , which led the area to be named Repoblación . The Douro vinhateiro (vine-land) of

5418-497: The northern half of the Meseta Central . The latter includes wine producing areas such as the Ribera del Duero DOP. The Latin name Durius might have been a Celtic name before the overwhelming Romanization of Iberia. If so, the Celtic root could have been *dubro- (in that family of languages the final vowel sound often changes with context, as in Latin). However, were that the case,

5504-443: The now-destroyed archaeology and is used in describing and interpreting the site. Once artifacts and structures have been excavated, or collected from surface surveys, it is necessary to properly study them. This process is known as post-excavation analysis , and is usually the most time-consuming part of an archaeological investigation. It is not uncommon for final excavation reports for major sites to take years to be published. At

5590-529: The original research objectives of the archaeologists. It is then considered good practice for the information to be published so that it is available to other archaeologists and historians, although this is sometimes neglected. Before actually starting to dig in a location, remote sensing can be used to look where sites are located within a large area or provide more information about sites or regions. There are two types of remote sensing instruments—passive and active. Passive instruments detect natural energy that

5676-413: The past. Since its early development, various specific sub-disciplines of archaeology have developed, including maritime archaeology , feminist archaeology , and archaeoastronomy , and numerous different scientific techniques have been developed to aid archaeological investigation. Nonetheless, today, archaeologists face many problems, such as dealing with pseudoarchaeology , the looting of artifacts,

5762-693: The people who produced them, monetary value to collectors, or strong aesthetic appeal. Many people identify archaeology with the recovery of such aesthetic, religious, political, or economic treasures rather than with the reconstruction of past societies. This view is often espoused in works of popular fiction, such as Raiders of the Lost Ark, The Mummy, and King Solomon's Mines. When unrealistic subjects are treated more seriously, accusations of pseudoscience are invariably levelled at their proponents (see Pseudoarchaeology ) . However, these endeavours, real and fictional, are not representative of modern archaeology. There

5848-550: The precise locations of objects and features, known as their provenance or provenience, be recorded. This always involves determining their horizontal locations, and sometimes vertical position as well (also see Primary Laws of Archaeology ). Likewise, their association , or relationship with nearby objects and features , needs to be recorded for later analysis. This allows the archaeologist to deduce which artifacts and features were likely used together and which may be from different phases of activity. For example, excavation of

5934-583: The river mouth, the only population centres of any note are Foz do Tua, Pinhão and Peso da Régua . Tributaries here are small, merging into the Douro along the canyons; the most important are Côa , Tua , Sabor , Corgo , Tavora , Paiva , Tâmega , and Sousa . None of these small, fast-flowing rivers is navigable. Major Spanish riverside towns include Soria , Almazán , Aranda de Duero , Tordesillas , Zamora and major Portuguese towns include Miranda do Douro , Foz Côa , Peso da Régua , Lamego , Vila Nova de Gaia , and Porto . The most populous cities along

6020-480: The river, allowing river traffic into the upper regions in Spain and along the border. In 1998, Portugal and Spain signed the Albufeira Convention, an agreement on the sharing of trans-boundary rivers to include the Douro, Tagus and Guadiana . The convention superseded an agreement on the Douro, signed in 1927, that was expanded in 1964 and 1968 to include tributaries. It is the third-longest river in

6106-487: The river. Adjacent areas produce port (a mildly fortified wine) and other agricultural produce. A small tributary of the river has the Côa Valley Paleolithic Art site which is considered important to the archaeological pre-historic patrimony, designated a UNESCO World Heritage Site . Within Spain, it flows through the middle of the autonomous community of Castile and León , with the basin spanning through

6192-455: The rivers. The Tâmega is more important historically than economically. It has always served as an invasion route for foreign armies intent on reaching the richer southern lands of Portugal. The valley around Chaves has especially seen its share of battles and invading armies. Like many rivers, the Tâmega suffers from pollution and the ravages of sand and gravel extraction companies. The quality of

6278-453: The storage power to 880 MW. The project also includes two run-of-the-river hydroelectricity facilities. The Tâmega line , which closed in 2009, was a narrow gauge railway line which closely followed the river. 41°04′55″N 8°17′35″W  /  41.082°N 8.293°W  / 41.082; -8.293 This article related to a river in Spain is a stub . You can help Misplaced Pages by expanding it . This article related to

6364-475: The sub-discipline of historical archaeology . For many literate cultures, such as Ancient Greece and Mesopotamia , their surviving records are often incomplete and biased to some extent. In many societies, literacy was restricted to the elite classes, such as the clergy , or the bureaucracy of court or temple. The literacy of aristocrats has sometimes been restricted to deeds and contracts. The interests and world-view of elites are often quite different from

6450-511: The temples of Šamaš the sun god, the warrior goddess Anunitu (both located in Sippar ), and the sanctuary that Naram-Sin built to the moon god, located in Harran , but he also had them restored to their former glory. He was also the first to date an archaeological artifact in his attempt to date Naram-Sin's temple during his search for it. Even though his estimate was inaccurate by about 1,500 years, it

6536-476: The term archaeology means "the study of ancient history". The discipline involves surveying , excavation , and eventually analysis of data collected, to learn more about the past. In broad scope, archaeology relies on cross-disciplinary research. Archaeology developed out of antiquarianism in Europe during the 19th century, and has since become a discipline practiced around the world. Archaeology has been used by nation-states to create particular visions of

6622-555: The tradition of Chinese epigraphy by investigating, preserving, and analyzing ancient Chinese bronze inscriptions from the Shang and Zhou periods. In his book published in 1088, Shen Kuo criticized contemporary Chinese scholars for attributing ancient bronze vessels as creations of famous sages rather than artisan commoners, and for attempting to revive them for ritual use without discerning their original functionality and purpose of manufacture. Such antiquarian pursuits waned after

6708-576: The use of metal detectors to be tantamount to treasure hunting, others deem them an effective tool in archaeological surveying. Examples of formal archaeological use of metal detectors include musketball distribution analysis on English Civil War battlefields, metal distribution analysis prior to excavation of a 19th-century ship wreck, and service cable location during evaluation. Metal detectorists have also contributed to archaeology where they have made detailed records of their results and refrained from raising artifacts from their archaeological context. In

6794-472: The usual term for one major branch of antiquarian activity. "Archaeology", from 1607 onward, initially meant what we would call "ancient history" generally, with the narrower modern sense first seen in 1837. However, it was Jacob Spon who, in 1685, offered one of the earliest definitions of "archaeologia" to describe the study of antiquities in which he was engaged, in the preface of a collection of transcriptions of Roman inscriptions which he had gleaned over

6880-506: The water has deteriorated greatly. Another problem is the periodic occurrence of flooding. Since the completion of the Torrão dam in 1988 less than 1 kilometre above the Douro river and the town of Entre-os-Rios in the municipality of Marco de Canaveses, the Tâmega has been recovering slowly from the effects of pollution. Sand extraction activities have been prohibited and many upstream cities installed modern sewage treatment plants. A new dam

6966-412: The years of his travels, entitled Miscellanea eruditae antiquitatis. Twelfth-century Indian scholar Kalhana 's writings involved recording of local traditions, examining manuscripts, inscriptions, coins and architectures, which is described as one of the earliest traces of archaeology. One of his notable work is called Rajatarangini which was completed in c.  1150 and is described as one of

7052-516: Was a restlessly itinerant Italian humanist and antiquarian who came from a prominent family of merchants in Ancona , a maritime republic on the Adriatic . He was called by his contemporaries pater antiquitatis ('father of antiquity') and today "father of classical archaeology": "Cyriac of Ancona was the most enterprising and prolific recorder of Greek and Roman antiquities, particularly inscriptions, in

7138-421: Was also responsible for mentoring and training a whole generation of Egyptologists, including Howard Carter who went on to achieve fame with the discovery of the tomb of 14th-century BC pharaoh Tutankhamun . The first stratigraphic excavation to reach wide popularity with public was that of Hissarlik , on the site of ancient Troy , carried out by Heinrich Schliemann , Frank Calvert and Wilhelm Dörpfeld in

7224-423: Was borrowed from the new geological and paleontological work of scholars like William Smith , James Hutton and Charles Lyell . The systematic application of stratigraphy to archaeology first took place with the excavations of prehistorical and Bronze Age sites. In the third and fourth decades of the 19th century, archaeologists like Jacques Boucher de Perthes and Christian Jürgensen Thomsen began to put

7310-421: Was developed as a result of increasing commercial development. The purpose of archaeology is to learn more about past societies and the development of the human race . Over 99% of the development of humanity has occurred within prehistoric cultures, who did not make use of writing , thereby no written records exist for study purposes. Without such written sources, the only way to understand prehistoric societies

7396-464: Was still a very good one considering the lack of accurate dating technology at the time. The science of archaeology (from Greek ἀρχαιολογία , archaiologia from ἀρχαῖος , arkhaios , "ancient" and -λογία , -logia , " -logy ") grew out of the older multi-disciplinary study known as antiquarianism . Antiquarians studied history with particular attention to ancient artifacts and manuscripts, as well as historical sites. Antiquarianism focused on

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