122-582: The Canal Museum , formerly known as the "National Waterways Museum Stoke Bruerne" and "The Canal Museum at Stoke Bruerne", is a canal museum located next to the Grand Union Canal just south of the Blisworth Tunnel , near the village of Stoke Bruerne in Northamptonshire . It is about 10 miles (16 km) north of Milton Keynes and 7 miles (11 km) south of Northampton near junction 15 of
244-534: A caisson of water in which boats float while being moved between two levels; and inclined planes where a caisson is hauled up a steep railway. To cross a stream, road or valley (where the delay caused by a flight of locks at either side would be unacceptable) the valley can be spanned by a navigable aqueduct – a famous example in Wales is the Pontcysyllte Aqueduct (now a UNESCO World Heritage Site ) across
366-504: A drainage divide atop a ridge , generally requiring an external water source above the highest elevation . The best-known example of such a canal is the Panama Canal . Many canals have been built at elevations, above valleys and other waterways. Canals with sources of water at a higher level can deliver water to a destination such as a city where water is needed. The Roman Empire 's aqueducts were such water supply canals. The term
488-405: A priestly role . He could not marry a woman from a senatorial family, nor achieve legitimate senatorial rank himself, but during the early Empire, freedmen held key positions in the government bureaucracy, so much so that Hadrian limited their participation by law. The rise of successful freedmen—through political influence or wealth—is a characteristic of early Imperial society. The prosperity of
610-415: A "cistern", or depressed area just downstream from the fall, to "cushion" the water by providing a deep pool for its kinetic energy to be diffused in. Vertical falls work for drops of up to 1.5 m in height, and for discharge of up to 15 cubic meters per second. The transport capacity of pack animals and carts is limited. A mule can carry an eighth-ton [250 pounds (113 kg)] maximum load over
732-496: A canal has a series of dams and locks that create reservoirs of low speed current flow. These reservoirs are referred to as slack water levels , often just called levels . A canal can be called a navigation canal when it parallels a natural river and shares part of the latter's discharges and drainage basin , and leverages its resources by building dams and locks to increase and lengthen its stretches of slack water levels while staying in its valley . A canal can cut across
854-413: A combination of the three, depending on available water and available path: Smaller transportation canals can carry barges or narrowboats , while ship canals allow seagoing ships to travel to an inland port (e.g., Manchester Ship Canal ), or from one sea or ocean to another (e.g., Caledonian Canal , Panama Canal ). At their simplest, canals consist of a trench filled with water. Depending on
976-425: A fifth of the population and played a major role in the economy. Slavery was a complex institution that supported traditional Roman social structures as well as contributing economic utility. In urban settings, slaves might be professionals such as teachers, physicians, chefs, and accountants; the majority of slaves provided trained or unskilled labour. Agriculture and industry, such as milling and mining, relied on
1098-635: A fine for a crime for which an humilior might receive a scourging . Execution, which was an infrequent legal penalty for free men under the Republic, could be quick and relatively painless for honestiores , while humiliores might suffer the kinds of torturous death previously reserved for slaves, such as crucifixion and condemnation to the beasts . In the early Empire, those who converted to Christianity could lose their standing as honestiores , especially if they declined to fulfil religious responsibilities, and thus became subject to punishments that created
1220-425: A freedman were born free, with full rights of citizenship. After manumission, a slave who had belonged to a Roman citizen enjoyed active political freedom ( libertas ), including the right to vote. His former master became his patron ( patronus ): the two continued to have customary and legal obligations to each other. A freedman was not entitled to hold public office or the highest state priesthoods, but could play
1342-617: A high-achieving group of freedmen is attested by inscriptions throughout the Empire . The Latin word ordo (plural ordines ) is translated variously and inexactly into English as "class, order, rank". One purpose of the Roman census was to determine the ordo to which an individual belonged. Two of the highest ordines in Rome were the senatorial and equestrian. Outside Rome, cities or colonies were led by decurions , also known as curiales . "Senator"
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#17328525876621464-565: A higher social class. Most of the emperors were bilingual but had a preference for Latin in the public sphere for political reasons, a "rule" that first started during the Punic Wars . Different emperors up until Justinian would attempt to require the use of Latin in various sections of the administration but there is no evidence that a linguistic imperialism existed during the early Empire. After all freeborn inhabitants were universally enfranchised in 212 , many Roman citizens would have lacked
1586-401: A household or workplace, a hierarchy of slaves might exist, with one slave acting as the master of others. Talented slaves might accumulate a large enough peculium to justify their freedom, or be manumitted for services rendered. Manumission had become frequent enough that in 2 BC a law ( Lex Fufia Caninia ) limited the number of slaves an owner was allowed to free in his will. Following
1708-543: A journey measured in days and weeks, though much more for shorter distances and periods with appropriate rest. Besides, carts need roads. Transport over water is much more efficient and cost-effective for large cargoes. The oldest known canals were irrigation canals, built in Mesopotamia c. 4000 BC , in what is now Iraq . The Indus Valley civilization of ancient India ( c. 3000 BC ) had sophisticated irrigation and storage systems developed, including
1830-465: A knowledge of Latin. The wide use of Koine Greek was what enabled the spread of Christianity and reflects its role as the lingua franca of the Mediterranean during the time of the Empire. Following Diocletian's reforms in the 3rd century CE, there was a decline in the knowledge of Greek in the west. Spoken Latin later fragmented into the incipient romance languages in the 7th century CE following
1952-513: A lasting influence on the development of language , religion , art , architecture , literature , philosophy , law , and forms of government across its territories. Latin evolved into the Romance languages while Medieval Greek became the language of the East. The Empire's adoption of Christianity resulted in the formation of medieval Christendom . Roman and Greek art had a profound impact on
2074-454: A man as an equestrian. The census of 28 BC uncovered large numbers of men who qualified, and in 14 AD, a thousand equestrians were registered at Cádiz and Padua alone. Equestrians rose through a military career track ( tres militiae ) to become highly placed prefects and procurators within the Imperial administration. The rise of provincial men to the senatorial and equestrian orders
2196-554: A married woman could have sex only with her husband, but a married man did not commit adultery if he had sex with a prostitute or person of marginalized status. Childbearing was encouraged: a woman who had given birth to three children was granted symbolic honours and greater legal freedom (the ius trium liberorum ). At the time of Augustus, as many as 35% of the people in Roman Italy were slaves, making Rome one of five historical "slave societies" in which slaves constituted at least
2318-575: A rather low gradient for its time. The canal is still in use after renovation. In the Middle Ages , water transport was several times cheaper and faster than transport overland. Overland transport by animal drawn conveyances was used around settled areas, but unimproved roads required pack animal trains, usually of mules to carry any degree of mass, and while a mule could carry an eighth ton, it also needed teamsters to tend it and one man could only tend perhaps five mules, meaning overland bulk transport
2440-427: A sense of "Romanness". Roman society had multiple, overlapping social hierarchies . The civil war preceding Augustus caused upheaval, but did not effect an immediate redistribution of wealth and social power. From the perspective of the lower classes, a peak was merely added to the social pyramid. Personal relationships— patronage , friendship ( amicitia ), family , marriage —continued to influence politics. By
2562-719: A shop and café, and a school/activity room available for educational visits. This article relating to a museum in the United Kingdom is a stub . You can help Misplaced Pages by expanding it . This United Kingdom canal-related article is a stub . You can help Misplaced Pages by expanding it . Canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation ) or for conveyancing water transport vehicles (e.g. water taxi ). They carry free, calm surface flow under atmospheric pressure , and can be thought of as artificial rivers . In most cases,
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#17328525876622684-507: A slave's rapist had to be prosecuted by the owner for property damage under the Aquilian Law . Slaves had no right to the form of legal marriage called conubium , but their unions were sometimes recognized. Technically, a slave could not own property, but a slave who conducted business might be given access to an individual fund ( peculium ) that he could use, depending on the degree of trust and co-operation between owner and slave. Within
2806-453: A uniform altitude. Other, generally later, canals took more direct routes requiring the use of various methods to deal with the change in level. Canals have various features to tackle the problem of water supply. In cases, like the Suez Canal, the canal is open to the sea. Where the canal is not at sea level, a number of approaches have been adopted. Taking water from existing rivers or springs
2928-422: Is a channel that cuts across a drainage divide , making a navigable channel connecting two different drainage basins . Both navigations and canals use engineered structures to improve navigation: Since they cut across drainage divides, canals are more difficult to construct and often need additional improvements, like viaducts and aqueducts to bridge waters over streams and roads, and ways to keep water in
3050-545: Is an aspect of social mobility in the early Empire. Roman aristocracy was based on competition, and unlike later European nobility , a Roman family could not maintain its position merely through hereditary succession or having title to lands. Admission to the higher ordines brought distinction and privileges, but also responsibilities. In antiquity, a city depended on its leading citizens to fund public works, events, and services ( munera ). Maintaining one's rank required massive personal expenditures. Decurions were so vital for
3172-675: Is presumed, introduced in Italy by Bertola da Novate in the 16th century. This allowed wider gates and also removed the height restriction of guillotine locks . To break out of the limitations caused by river valleys, the first summit level canals were developed with the Grand Canal of China in 581–617 AD whilst in Europe the first, also using single locks, was the Stecknitz Canal in Germany in 1398. In
3294-578: Is rarely less than 30 metres (98 ft) wide. In the 5th century BC, Achaemenid king Xerxes I of Persia ordered the construction of the Xerxes Canal through the base of Mount Athos peninsula, Chalkidiki , northern Greece. It was constructed as part of his preparations for the Second Persian invasion of Greece , a part of the Greco-Persian Wars . It is one of the few monuments left by
3416-418: Is steeper than the desired canal gradient. They are constructed so the falling water's kinetic energy is dissipated in order to prevent it from scouring the bed and sides of the canal. A canal fall is constructed by cut and fill . It may be combined with a regulator, bridge, or other structure to save costs. There are various types of canal falls, based on their shape. One type is the ogee fall, where
3538-448: Is the pound lock , which consists of a chamber within which the water level can be raised or lowered connecting either two pieces of canal at a different level or the canal with a river or the sea. When there is a hill to be climbed, flights of many locks in short succession may be used. Prior to the development of the pound lock in 984 AD in China by Chhaio Wei-Yo and later in Europe in
3660-613: Is traditionally regarded as the Pax Romana ("Roman Peace"). The cohesion of the empire was furthered by a degree of social stability and economic prosperity that Rome had never before experienced. Uprisings in the provinces were infrequent and put down "mercilessly and swiftly". The success of Augustus in establishing principles of dynastic succession was limited by his outliving a number of talented potential heirs. The Julio-Claudian dynasty lasted for four more emperors— Tiberius , Caligula , Claudius , and Nero —before it yielded in 69 AD to
3782-590: The Battle of Actium in 31 BC. In 27 BC the Senate gave him the title Augustus ("venerated") and made him princeps ("foremost") with proconsular imperium , thus beginning the Principate , the first epoch of Roman imperial history. Although the republic stood in name, Augustus had all meaningful authority. During his 40-year rule, a new constitutional order emerged so that, upon his death, Tiberius would succeed him as
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3904-470: The Dominate . The emperor was the ultimate authority in policy- and decision-making, but in the early Principate, he was expected to be accessible and deal personally with official business and petitions. A bureaucracy formed around him only gradually. The Julio-Claudian emperors relied on an informal body of advisors that included not only senators and equestrians, but trusted slaves and freedmen. After Nero,
4026-639: The Elbe , Oder and Weser being linked by canals. In post-Roman Britain, the first early modern period canal built appears to have been the Exeter Canal , which was surveyed in 1563, and open in 1566. The oldest canal in the European settlements of North America, technically a mill race built for industrial purposes, is Mother Brook between the Boston, Massachusetts neighbourhoods of Dedham and Hyde Park connecting
4148-666: The Huns of Attila , led to the decline of the Western Roman Empire . With the fall of Ravenna to the Germanic Herulians and the deposition of Romulus Augustus in 476 by Odoacer , the Western Empire finally collapsed. The Eastern Roman Empire survived for another millennium with Constantinople as its sole capital, until the city's fall in 1453. Due to the Empire's extent and endurance, its institutions and culture had
4270-533: The Italian Renaissance . Rome's architectural tradition served as the basis for Romanesque , Renaissance and Neoclassical architecture , influencing Islamic architecture . The rediscovery of classical science and technology (which formed the basis for Islamic science ) in medieval Europe contributed to the Scientific Renaissance and Scientific Revolution . Many modern legal systems, such as
4392-471: The M1 motorway . The museum was established in 1963, as "The Canal Museum". It was founded by two canal workers and enthusiasts, Charles N. Hadlow, the first curator, and Jack James, its first caretaker, whose personal collections formed the main part of its initial exhibits. It was subsequently known as the "National Waterways Museum Stoke Bruerne", one of three museums operated by The Waterways Trust that focused on
4514-615: The Mediterranean and beyond. However, it was severely destabilised by civil wars and political conflicts , which culminated in the victory of Octavian over Mark Antony and Cleopatra at the Battle of Actium in 31 BC, and the subsequent conquest of the Ptolemaic Kingdom in Egypt. In 27 BC, the Roman Senate granted Octavian overarching military power ( imperium ) and
4636-691: The Napoleonic Code , descend from Roman law. Rome's republican institutions have influenced the Italian city-state republics of the medieval period, the early United States , and modern democratic republics . Rome had begun expanding shortly after the founding of the Roman Republic in the 6th century BC, though not outside the Italian Peninsula until the 3rd century BC. Thus, it was an "empire" (a great power) long before it had an emperor. The Republic
4758-530: The Naviglio Grande built between 1127 and 1257 to connect Milan with the river Ticino . The Naviglio Grande is the most important of the lombard " navigli " and the oldest functioning canal in Europe. Later, canals were built in the Netherlands and Flanders to drain the polders and assist transportation of goods and people. Canal building was revived in this age because of commercial expansion from
4880-466: The Nile Valley in Egypt. The empire completely circled the Mediterranean ... referred to by its conquerors as mare nostrum —'our sea'. Trajan's successor Hadrian adopted a policy of maintaining rather than expanding the empire. Borders ( fines ) were marked, and the frontiers ( limites ) patrolled. The most heavily fortified borders were the most unstable. Hadrian's Wall , which separated
5002-495: The Pax Romana ( lit. ' Roman Peace ' ). Rome reached its greatest territorial extent under Trajan ( r. 98–117 AD ), but a period of increasing trouble and decline began under Commodus ( r. 180–192 ). In the 3rd century, the Empire underwent a 49-year crisis that threatened its existence due to civil war, plagues and barbarian invasions . The Gallic and Palmyrene empires broke away from
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5124-532: The Phoenix metropolitan area was the most complex in ancient North America. A portion of the ancient canals has been renovated for the Salt River Project and now helps to supply the city's water. The Sinhalese constructed the 87 km (54 mi) Yodha Ela in 459 A.D. as a part of their extensive irrigation network which functioned in a way of a moving reservoir due to its single banking aspect to manage
5246-522: The River Brue at Northover with Glastonbury Abbey , a distance of about 1.75 kilometres (1,900 yd). Its initial purpose is believed to be the transport of building stone for the abbey, but later it was used for delivering produce, including grain, wine and fish, from the abbey's outlying properties. It remained in use until at least the 14th century, but possibly as late as the mid-16th century. More lasting and of more economic impact were canals like
5368-590: The Servile Wars of the Republic, legislation under Augustus and his successors shows a driving concern for controlling the threat of rebellions through limiting the size of work groups, and for hunting down fugitive slaves. Over time slaves gained increased legal protection, including the right to file complaints against their masters. A bill of sale might contain a clause stipulating that the slave could not be employed for prostitution, as prostitutes in ancient Rome were often slaves. The burgeoning trade in eunuchs in
5490-594: The Songhai Empire of West Africa, several canals were constructed under Sunni Ali and Askia Muhammad I between Kabara and Timbuktu in the 15th century. These were used primarily for irrigation and transport. Sunni Ali also attempted to construct a canal from the Niger River to Walata to facilitate conquest of the city but his progress was halted when he went to war with the Mossi Kingdoms . Around 1500–1800
5612-548: The reservoirs built at Girnar in 3000 BC. This is the first time that such planned civil project had taken place in the ancient world. In Egypt , canals date back at least to the time of Pepi I Meryre (reigned 2332–2283 BC), who ordered a canal built to bypass the cataract on the Nile near Aswan . In ancient China , large canals for river transport were established as far back as the Spring and Autumn period (8th–5th centuries BC),
5734-404: The stratum the canal passes through, it may be necessary to line the cut with some form of watertight material such as clay or concrete. When this is done with clay, it is known as puddling . Canals need to be level, and while small irregularities in the lie of the land can be dealt with through cuttings and embankments, for larger deviations other approaches have been adopted. The most common
5856-466: The 12th century. River navigations were improved progressively by the use of single, or flash locks . Taking boats through these used large amounts of water leading to conflicts with watermill owners and to correct this, the pound or chamber lock first appeared, in the 10th century in China and in Europe in 1373 in Vreeswijk , Netherlands. Another important development was the mitre gate , which was, it
5978-465: The 15th century, either flash locks consisting of a single gate were used or ramps, sometimes equipped with rollers, were used to change the level. Flash locks were only practical where there was plenty of water available. Locks use a lot of water, so builders have adopted other approaches for situations where little water is available. These include boat lifts , such as the Falkirk Wheel , which use
6100-605: The 600-member body by appointment. A senator's son belonged to the ordo senatorius , but he had to qualify on his own merits for admission to the Senate. A senator could be removed for violating moral standards. In the time of Nero, senators were still primarily from Italy , with some from the Iberian peninsula and southern France; men from the Greek-speaking provinces of the East began to be added under Vespasian. The first senator from
6222-400: The 6th and 7th centuries with the disintegration of the complex Imperial economy. Laws pertaining to slavery were "extremely intricate". Slaves were considered property and had no legal personhood . They could be subjected to forms of corporal punishment not normally exercised on citizens, sexual exploitation , torture, and summary execution . A slave could not as a matter of law be raped;
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#17328525876626344-452: The Augustan programme to restore traditional morality and social order, moral legislation attempted to regulate conduct as a means of promoting " family values ". Adultery was criminalized, and defined broadly as an illicit sex act ( stuprum ) between a male citizen and a married woman, or between a married woman and any man other than her husband. That is, a double standard was in place:
6466-513: The Empire was engulfed by the Crisis of the Third Century , a period of invasions , civil strife , economic disorder , and plague . In defining historical epochs , this crisis sometimes marks the transition from Classical to Late Antiquity . Aurelian ( r. 270–275 ) stabilised the empire militarily and Diocletian reorganised and restored much of it in 285. Diocletian's reign brought
6588-458: The Mediterranean and much of Europe, Western Asia and North Africa. The Romans conquered most of this during the Republic , and it was ruled by emperors following Octavian 's assumption of effective sole rule in 27 BC. The western empire collapsed in 476 AD, but the eastern empire lasted until the fall of Constantinople in 1453. By 100 BC, Rome had expanded its rule to most of
6710-602: The Middle East. The Latin phrase imperium sine fine ("empire without end" ) expressed the ideology that neither time nor space limited the Empire. In Virgil 's Aeneid , limitless empire is said to be granted to the Romans by Jupiter . This claim of universal dominion was renewed when the Empire came under Christian rule in the 4th century. In addition to annexing large regions, the Romans directly altered their geography, for example cutting down entire forests . Roman expansion
6832-571: The Persian Empire in Europe . Greek engineers were also among the first to use canal locks , by which they regulated the water flow in the Ancient Suez Canal as early as the 3rd century BC. There was little experience moving bulk loads by carts, while a pack-horse would [i.e. 'could'] carry only an eighth of a ton. On a soft road a horse might be able to draw 5/8ths of a ton. But if
6954-450: The Rhine and Danube. Roman jurists also show a concern for local languages such as Punic , Gaulish , and Aramaic in assuring the correct understanding of laws and oaths. In Africa , Libyco-Berber and Punic were used in inscriptions into the 2nd century. In Syria , Palmyrene soldiers used their dialect of Aramaic for inscriptions, an exception to the rule that Latin was the language of
7076-606: The Roman Republic ) while greatly extending its power beyond Italy. In 44 BC Julius Caesar was briefly perpetual dictator before being assassinated by a faction that opposed his concentration of power. This faction was driven from Rome and defeated at the Battle of Philippi in 42 BC by Mark Antony and Caesar's adopted son Octavian . Antony and Octavian divided the Roman world between them, but this did not last long. Octavian's forces defeated those of Mark Antony and Cleopatra at
7198-430: The Roman legal concept of imperium , meaning "command" (typically in a military sense). Occasionally, successful consuls or generals were given the honorary title imperator (commander); this is the origin of the word emperor , since this title was always bestowed to the early emperors. Rome suffered a long series of internal conflicts, conspiracies, and civil wars from the late second century BC (see Crisis of
7320-448: The Roman world from what was perceived as an ever-present barbarian threat, is the primary surviving monument of this effort. Latin and Greek were the main languages of the Empire, but the Empire was deliberately multilingual. Andrew Wallace-Hadrill says "The main desire of the Roman government was to make itself understood". At the start of the Empire, knowledge of Greek was useful to pass as educated nobility and knowledge of Latin
7442-753: The Southwest by 1300 CE. Archaeologists working at a major archaeological dig in the 1990s in the Tucson Basin, along the Santa Cruz River, identified a culture and people that may have been the ancestors of the Hohokam. This prehistoric group occupied southern Arizona as early as 2000 BCE, and in the Early Agricultural period grew corn, lived year-round in sedentary villages, and developed sophisticated irrigation canals. The large-scale Hohokam irrigation network in
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#17328525876627564-449: The account of his achievements ( Res Gestae ) prominently featured the geographical cataloguing of the Empire. Geography alongside meticulous written records were central concerns of Roman Imperial administration . The Empire reached its largest expanse under Trajan ( r. 98–117 ), encompassing 5 million km . The traditional population estimate of 55–60 million inhabitants accounted for between one-sixth and one-fourth of
7686-436: The canal pressure with the influx of water. It was also designed as an elongated reservoir passing through traps creating 66 mini catchments as it flows from Kala Wewa to Thissa Wawa . The canal was not designed for the quick conveying of water from Kala Wewa to Thissa Wawa but to create a mass of water between the two reservoirs, which would in turn provided for agriculture and the use of humans and animals. They also achieved
7808-418: The canal to form a dam. They are generally placed in pre-existing grooves in the canal bank. On more modern canals, "guard locks" or gates were sometimes placed to allow a section of the canal to be quickly closed off, either for maintenance, or to prevent a major loss of water due to a canal breach. A canal fall , or canal drop, is a vertical drop in the canal bed. These are built when the natural ground slope
7930-462: The canal. Where large amounts of goods are loaded or unloaded such as at the end of a canal, a canal basin may be built. This would normally be a section of water wider than the general canal. In some cases, the canal basins contain wharfs and cranes to assist with movement of goods. When a section of the canal needs to be sealed off so it can be drained for maintenance stop planks are frequently used. These consist of planks of wood placed across
8052-463: The channel. There are two broad types of canal: Historically, canals were of immense importance to commerce and the development, growth and vitality of a civilization. In 1855 the Lehigh Canal carried over 1.2 million tons of anthracite coal; by the 1930s the company which built and operated it for over a century ceased operation. The few canals still in operation in our modern age are a fraction of
8174-418: The collapse of the Empire's west. The dominance of Latin and Greek among the literate elite obscure the continuity of other spoken languages within the Empire. Latin, referred to in its spoken form as Vulgar Latin , gradually replaced Celtic and Italic languages . References to interpreters indicate the continuing use of local languages, particularly in Egypt with Coptic , and in military settings along
8296-482: The conditions of martyrdom . The three major elements of the Imperial state were the central government, the military, and the provincial government. The military established control of a territory through war, but after a city or people was brought under treaty, the mission turned to policing: protecting Roman citizens, agricultural fields, and religious sites. The Romans lacked sufficient manpower or resources to rule through force alone. Cooperation with local elites
8418-481: The deceased emperor's deification. The dominance of the emperor was based on the consolidation of powers from several republican offices. The emperor made himself the central religious authority as pontifex maximus , and centralized the right to declare war, ratify treaties, and negotiate with foreign leaders. While these functions were clearly defined during the Principate , the emperor's powers over time became less constitutional and more monarchical, culminating in
8540-497: The descent "from a kingdom of gold to one of rust and iron", a comment which has led some historians, notably Edward Gibbon , to take Commodus' reign as the beginning of the Empire's decline . In 212, during the reign of Caracalla , Roman citizenship was granted to all freeborn inhabitants of the empire. The Severan dynasty was tumultuous; an emperor's reign was ended routinely by his murder or execution and, following its collapse,
8662-399: The drop follows an s-shaped curve to create a smooth transition and reduce turbulence . However, this smooth transition does not dissipate the water's kinetic energy, which leads to heavy scouring. As a result, the canal needs to be reinforced with concrete or masonry to protect it from eroding. Another type of canal fall is the vertical fall, which is "simple and economical". These feature
8784-467: The easternmost province, Cappadocia , was admitted under Marcus Aurelius. By the Severan dynasty (193–235), Italians made up less than half the Senate. During the 3rd century, domicile at Rome became impractical, and inscriptions attest to senators who were active in politics and munificence in their homeland ( patria ). Senators were the traditional governing class who rose through the cursus honorum ,
8906-505: The empire's most concerted effort against the perceived threat of Christianity , the " Great Persecution ". Diocletian divided the empire into four regions, each ruled by a separate tetrarch . Confident that he fixed the disorder plaguing Rome, he abdicated along with his co-emperor, but the Tetrarchy collapsed shortly after . Order was eventually restored by Constantine the Great , who became
9028-506: The empire. This legal egalitarianism required a far-reaching revision of existing laws that distinguished between citizens and non-citizens. Freeborn Roman women were considered citizens, but did not vote, hold political office, or serve in the military. A mother's citizen status determined that of her children, as indicated by the phrase ex duobus civibus Romanis natos ("children born of two Roman citizens"). A Roman woman kept her own family name ( nomen ) for life. Children most often took
9150-609: The end of the Western Roman Empire in 476, when Romulus Augustulus was forced to abdicate to the Germanic warlord Odoacer . Odoacer ended the Western Empire by declaring Zeno sole emperor and placing himself as Zeno's nominal subordinate. In reality, Italy was ruled by Odoacer alone. The Eastern Roman Empire, called the Byzantine Empire by later historians, continued until the reign of Constantine XI Palaiologos ,
9272-498: The exploitation of slaves. Outside Italy, slaves were on average an estimated 10 to 20% of the population, sparse in Roman Egypt but more concentrated in some Greek areas. Expanding Roman ownership of arable land and industries affected preexisting practices of slavery in the provinces. Although slavery has often been regarded as waning in the 3rd and 4th centuries, it remained an integral part of Roman society until gradually ceasing in
9394-457: The father's name, with some exceptions. Women could own property, enter contracts, and engage in business. Inscriptions throughout the Empire honour women as benefactors in funding public works, an indication they could hold considerable fortunes. The archaic manus marriage in which the woman was subject to her husband's authority was largely abandoned by the Imperial era, and a married woman retained ownership of any property she brought into
9516-619: The first emperor to convert to Christianity , and who established Constantinople as the new capital of the Eastern Empire. During the decades of the Constantinian and Valentinian dynasties, the empire was divided along an east–west axis, with dual power centres in Constantinople and Rome. Julian , who under the influence of his adviser Mardonius attempted to restore Classical Roman and Hellenistic religion , only briefly interrupted
9638-592: The first summit level canal to use pound locks in Europe was the Briare Canal connecting the Loire and Seine (1642), followed by the more ambitious Canal du Midi (1683) connecting the Atlantic to the Mediterranean. This included a staircase of 8 locks at Béziers , a 157 metres (515 ft) tunnel, and three major aqueducts. Canal building progressed steadily in Germany in the 17th and 18th centuries with three great rivers,
9760-456: The freedom to make deliveries well away from rail lined road beds or ditches in the dirt which could not operate in the winter. The longest extant canal today, the Grand Canal in northern China, still remains in heavy use, especially the portion south of the Yellow River . It stretches from Beijing to Hangzhou at 1,794 kilometres (1,115 miles). Canals are built in one of three ways, or
9882-456: The functioning of cities that in the later Empire, as the ranks of the town councils became depleted, those who had risen to the Senate were encouraged to return to their hometowns, in an effort to sustain civic life. In the later Empire, the dignitas ("worth, esteem") that attended on senatorial or equestrian rank was refined further with titles such as vir illustris ("illustrious man"). The appellation clarissimus (Greek lamprotatos )
10004-713: The higher waters of the Charles River and the mouth of the Neponset River and the sea. It was constructed in 1639 to provide water power for mills. In Russia, the Volga–Baltic Waterway , a nationwide canal system connecting the Baltic Sea and Caspian Sea via the Neva and Volga rivers, was opened in 1718. Roman Empire The Roman Empire was the era of Roman civilisation lasting from 27 BC to 476 AD. Rome ruled
10126-664: The historian Christopher Kelly described it: Then the empire stretched from Hadrian's Wall in drizzle-soaked northern England to the sun-baked banks of the Euphrates in Syria; from the great Rhine – Danube river system, which snaked across the fertile, flat lands of Europe from the Low Countries to the Black Sea , to the rich plains of the North African coast and the luxuriant gash of
10248-612: The history of canals in Britain. After the creation of the Canal & River Trust in 2010, the Stoke Bruerne museum was rebranded to its original name. The museum is housed in a restored Grade II listed corn mill at the top of a flight of canal locks , and is one of several museums and attractions operated by the Canal & River Trust , the successor to The Waterways Trust . The museum tells
10370-515: The last Roman emperor. He died in battle in 1453 against Mehmed II and his Ottoman forces during the siege of Constantinople . Mehmed II adopted the title of caesar in an attempt to claim a connection to the former Empire. His claim was soon recognized by the Patriarchate of Constantinople , but not by most European monarchs. The Roman Empire was one of the largest in history, with contiguous territories throughout Europe, North Africa, and
10492-540: The late 1st century prompted legislation that prohibited the castration of a slave against his will "for lust or gain". Roman slavery was not based on race . Generally, slaves in Italy were indigenous Italians, with a minority of foreigners (including both slaves and freedmen) estimated at 5% of the total in the capital at its peak, where their number was largest. Foreign slaves had higher mortality and lower birth rates than natives, and were sometimes even subjected to mass expulsions. The average recorded age at death for
10614-488: The load were carried by a barge on a waterway, then up to 30 tons could be drawn by the same horse. — technology historian Ronald W. Clark referring to transport realities before the industrial revolution and the Canal age . Hohokam was a society in the North American Southwest in what is now part of Arizona , United States, and Sonora , Mexico. Their irrigation systems supported the largest population in
10736-472: The longest canal in the world today and the oldest extant one. It is 1,794 kilometres (1,115 mi) long and was built to carry the Emperor Yang Guang between Zhuodu ( Beijing ) and Yuhang ( Hangzhou ). The project began in 605 and was completed in 609, although much of the work combined older canals, the oldest section of the canal existing since at least 486 BC. Even in its narrowest urban sections it
10858-523: The longest one of that period being the Hong Gou (Canal of the Wild Geese), which according to the ancient historian Sima Qian connected the old states of Song, Zhang, Chen, Cai, Cao, and Wei. The Caoyun System of canals was essential for imperial taxation, which was largely assessed in kind and involved enormous shipments of rice and other grains. By far the longest canal was the Grand Canal of China , still
10980-486: The marriage. Technically she remained under her father's legal authority, even though she moved into her husband's home, but when her father died she became legally emancipated. This arrangement was a factor in the degree of independence Roman women enjoyed compared to many other cultures up to the modern period: although she had to answer to her father in legal matters, she was free of his direct scrutiny in daily life, and her husband had no legal power over her. Although it
11102-416: The members of the three higher "orders", along with certain military officers. The granting of universal citizenship in 212 seems to have increased the competitive urge among the upper classes to have their superiority affirmed, particularly within the justice system. Sentencing depended on the judgment of the presiding official as to the relative "worth" ( dignitas ) of the defendant: an honestior could pay
11224-719: The military. The last reference to Gaulish was between 560 and 575. The emergent Gallo-Romance languages would then be shaped by Gaulish. Proto-Basque or Aquitanian evolved with Latin loan words to modern Basque . The Thracian language , as were several now-extinct languages in Anatolia, are attested in Imperial-era inscriptions. The Empire was remarkably multicultural, with "astonishing cohesive capacity" to create shared identity while encompassing diverse peoples. Public monuments and communal spaces open to all—such as forums , amphitheatres , racetracks and baths —helped foster
11346-444: The new de facto monarch. As Roman provinces were being established throughout the Mediterranean, Italy maintained a special status which made it domina provinciarum ("ruler of the provinces"), and – especially in relation to the first centuries of imperial stability – rectrix mundi ("governor of the world") and omnium terrarum parens ("parent of all lands"). The 200 years that began with Augustus's rule
11468-407: The new title of Augustus , marking his accession as the first Roman emperor . The vast Roman territories were organized into senatorial provinces, governed by proconsuls who were appointed by lot annually, and imperial provinces, which belonged to the emperor but were governed by legates . The first two centuries of the Empire saw a period of unprecedented stability and prosperity known as
11590-506: The numbers that once fueled and enabled economic growth, indeed were practically a prerequisite to further urbanization and industrialization. For the movement of bulk raw materials such as coal and ores are difficult and marginally affordable without water transport. Such raw materials fueled the industrial developments and new metallurgy resulting of the spiral of increasing mechanization during 17th–20th century, leading to new research disciplines, new industries and economies of scale, raising
11712-412: The political career track, but equestrians often possessed greater wealth and political power. Membership in the equestrian order was based on property; in Rome's early days, equites or knights had been distinguished by their ability to serve as mounted warriors, but cavalry service was a separate function in the Empire. A census valuation of 400,000 sesterces and three generations of free birth qualified
11834-507: The poor were other sources. Vernae , by contrast, were "homegrown" slaves born to female slaves within the household, estate or farm. Although they had no special legal status, an owner who mistreated or failed to care for his vernae faced social disapproval, as they were considered part of the family household and in some cases might actually be the children of free males in the family. Rome differed from Greek city-states in allowing freed slaves to become citizens; any future children of
11956-582: The pre-railroad days of the industrial revolution, water transport was the gold standard of fast transportation. The first artificial canal in Western Europe was the Fossa Carolina built at the end of the 8th century under personal supervision of Charlemagne . In Britain, the Glastonbury Canal is believed to be the first post-Roman canal and was built in the middle of the 10th century to link
12078-528: The slaves of the city of Rome was seventeen and a half years (17.2 for males; 17.9 for females). During the period of republican expansionism when slavery had become pervasive, war captives were a main source of slaves. The range of ethnicities among slaves to some extent reflected that of the armies Rome defeated in war, and the conquest of Greece brought a number of highly skilled and educated slaves. Slaves were also traded in markets and sometimes sold by pirates . Infant abandonment and self-enslavement among
12200-480: The standard of living for any industrialized society. Most ship canals today primarily service bulk cargo and large ship transportation industries, whereas the once critical smaller inland waterways conceived and engineered as boat and barge canals have largely been supplanted and filled in, abandoned and left to deteriorate, or kept in service and staffed by state employees, where dams and locks are maintained for flood control or pleasure boating. Their replacement
12322-636: The state and a series of short-lived emperors led the Empire, which was later reunified under Aurelian ( r. 270–275 ). The civil wars ended with the victory of Diocletian ( r. 284–305 ), who set up two different imperial courts in the Greek East and Latin West . Constantine the Great ( r. 306–337 ), the first Christian emperor , moved the imperial seat from Rome to Byzantium in 330, and renamed it Constantinople . The Migration Period , involving large invasions by Germanic peoples and by
12444-655: The story of Britain's inland waterways and the people who worked on them. It provides an insight into the transport system which was fundamental to the Industrial Revolution in Britain. There are working models and 3-D displays including a model of the short-lived inclined-plane mechanical lift at Foxton in Leicestershire. Exhibits include models of working boats including narrow boats , barges , butties and tugs, painted ware and canal crafts, traditional clothing, canal-side signs and specialist tools. The museum has
12566-522: The strife-torn Year of the Four Emperors , from which Vespasian emerged as the victor. Vespasian became the founder of the brief Flavian dynasty , followed by the Nerva–Antonine dynasty which produced the " Five Good Emperors ": Nerva , Trajan , Hadrian , Antoninus Pius , and Marcus Aurelius . In the view of contemporary Greek historian Cassius Dio , the accession of Commodus in 180 marked
12688-461: The succession of Christian emperors. Theodosius I , the last emperor to rule over both East and West, died in 395 after making Christianity the state religion . The Western Roman Empire began to disintegrate in the early 5th century. The Romans fought off all invaders, most famously Attila , but the empire had assimilated so many Germanic peoples of dubious loyalty to Rome that the empire started to dismember itself. Most chronologies place
12810-562: The time of Nero , however, it was not unusual to find a former slave who was richer than a freeborn citizen, or an equestrian who exercised greater power than a senator. The blurring of the Republic's more rigid hierarchies led to increased social mobility , both upward and downward, to a greater extent than all other well-documented ancient societies. Women, freedmen, and slaves had opportunities to profit and exercise influence in ways previously less available to them. Social life, particularly for those whose personal resources were limited,
12932-556: The valley of the River Dee . Another option for dealing with hills is to tunnel through them. An example of this approach is the Harecastle Tunnel on the Trent and Mersey Canal . Tunnels are only practical for smaller canals. Some canals attempted to keep changes in level down to a minimum. These canals known as contour canals would take longer, winding routes, along which the land was
13054-411: The world's total population and made it the most populous unified political entity in the West until the mid-19th century. Recent demographic studies have argued for a population peak from 70 million to more than 100 million . Each of the three largest cities in the Empire – Rome, Alexandria , and Antioch – was almost twice the size of any European city at the beginning of the 17th century. As
13176-442: Was a point of pride to be a "one-man woman" ( univira ) who had married only once, there was little stigma attached to divorce , nor to speedy remarriage after being widowed or divorced. Girls had equal inheritance rights with boys if their father died without leaving a will. A mother's right to own and dispose of property, including setting the terms of her will, gave her enormous influence over her sons into adulthood. As part of
13298-466: Was also expensive, as men expect compensation in the form of wages, room and board. This was because long-haul roads were unpaved, more often than not too narrow for carts, much less wagons, and in poor condition, wending their way through forests, marshy or muddy quagmires as often as unimproved but dry footing. In that era, as today, greater cargoes, especially bulk goods and raw materials , could be transported by ship far more economically than by land; in
13420-458: Was an option in some cases, sometimes supplemented by other methods to deal with seasonal variations in flow. Where such sources were unavailable, reservoirs – either separate from the canal or built into its course – and back pumping were used to provide the required water. In other cases, water pumped from mines was used to feed the canal. In certain cases, extensive "feeder canals" were built to bring water from sources located far from
13542-465: Was further defined by their citizenship. Most citizens held limited rights (such as the ius Latinum , "Latin right"), but were entitled to legal protections and privileges not enjoyed by non-citizens. Free people not considered citizens, but living within the Roman world, were peregrini , non-Romans. In 212, the Constitutio Antoniniana extended citizenship to all freeborn inhabitants of
13664-466: Was further fostered by a proliferation of voluntary associations and confraternities ( collegia and sodalitates ): professional and trade guilds, veterans' groups, religious sodalities, drinking and dining clubs, performing troupes, and burial societies . According to the jurist Gaius , the essential distinction in the Roman " law of persons " was that all humans were either free ( liberi ) or slaves ( servi ). The legal status of free persons
13786-463: Was gradual, beginning first in the United States in the mid-1850s where canal shipping was first augmented by, then began being replaced by using much faster , less geographically constrained & limited, and generally cheaper to maintain railways . By the early 1880s, canals which had little ability to economically compete with rail transport, were off the map. In the next couple of decades, coal
13908-424: Was increasingly diminished as the heating fuel of choice by oil, and growth of coal shipments leveled off. Later, after World War I when motor-trucks came into their own, the last small U.S. barge canals saw a steady decline in cargo ton-miles alongside many railways, the flexibility and steep slope climbing capability of lorries taking over cargo hauling increasingly as road networks were improved, and which also had
14030-490: Was mostly accomplished under the Republic , though parts of northern Europe were conquered in the 1st century, when Roman control in Europe, Africa, and Asia was strengthened. Under Augustus , a "global map of the known world" was displayed for the first time in public at Rome, coinciding with the creation of the most comprehensive political geography that survives from antiquity, the Geography of Strabo . When Augustus died,
14152-671: Was necessary to maintain order, collect information, and extract revenue. The Romans often exploited internal political divisions. Communities with demonstrated loyalty to Rome retained their own laws, could collect their own taxes locally, and in exceptional cases were exempt from Roman taxation. Legal privileges and relative independence incentivized compliance. Roman government was thus limited , but efficient in its use of available resources. The Imperial cult of ancient Rome identified emperors and some members of their families with divinely sanctioned authority ( auctoritas ). The rite of apotheosis (also called consecratio ) signified
14274-416: Was never a legal requirement for Latin in the Empire, but it represented a certain status. High standards of Latin, Latinitas , started with the advent of Latin literature. Due to the flexible language policy of the Empire, a natural competition of language emerged that spurred Latinitas , to defend Latin against the stronger cultural influence of Greek. Over time Latin usage was used to project power and
14396-445: Was not a nation-state in the modern sense, but a network of self-ruled towns (with varying degrees of independence from the Senate ) and provinces administered by military commanders. It was governed by annually elected magistrates ( Roman consuls above all) in conjunction with the Senate. The 1st century BC was a time of political and military upheaval, which ultimately led to rule by emperors. The consuls' military power rested in
14518-426: Was not itself an elected office in ancient Rome; an individual gained admission to the Senate after he had been elected to and served at least one term as an executive magistrate . A senator also had to meet a minimum property requirement of 1 million sestertii . Not all men who qualified for the ordo senatorius chose to take a Senate seat, which required legal domicile at Rome. Emperors often filled vacancies in
14640-426: Was once used to describe linear features seen on the surface of Mars , Martian canals , an optical illusion. A navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A navigation always shares the drainage basin of the river. A vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height. A true canal
14762-447: Was used to designate the dignitas of certain senators and their immediate family, including women. "Grades" of equestrian status proliferated. As the republican principle of citizens' equality under the law faded, the symbolic and social privileges of the upper classes led to an informal division of Roman society into those who had acquired greater honours ( honestiores ) and humbler folk ( humiliores ). In general, honestiores were
14884-476: Was useful for a career in the military, government, or law. Bilingual inscriptions indicate the everyday interpenetration of the two languages. Latin and Greek's mutual linguistic and cultural influence is a complex topic. Latin words incorporated into Greek were very common by the early imperial era, especially for military, administration, and trade and commerce matters. Greek grammar, literature, poetry and philosophy shaped Latin language and culture. There
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