The Mid-Atlantic Ridge is a mid-ocean ridge (a divergent or constructive plate boundary ) located along the floor of the Atlantic Ocean , and part of the longest mountain range in the world . In the North Atlantic, the ridge separates the North American from the Eurasian plate and the African plate , north and south of the Azores triple junction . In the South Atlantic, it separates the African and South American plates. The ridge extends from a junction with the Gakkel Ridge (Mid-Arctic Ridge) northeast of Greenland southward to the Bouvet triple junction in the South Atlantic. Although the Mid-Atlantic Ridge is mostly an underwater feature, portions of it have enough elevation to extend above sea level, for example in Iceland . The ridge has an average spreading rate of about 2.5 centimetres (1 in) per year.
145-594: A ridge under the northern Atlantic Ocean was first inferred by Matthew Fontaine Maury in 1853, based on soundings by the USS Dolphin . The existence of the ridge and its extension into the South Atlantic was confirmed during the expedition of HMS Challenger in 1872. A team of scientists on board, led by Charles Wyville Thomson , discovered a large rise in the middle of the Atlantic while investigating
290-609: A Virginian , resigned his commission as a U.S. Navy commander and joined the Confederacy . He spent the war in the Southern United States , and Great Britain and France as a Confederate envoy. He helped the Confederacy acquire a ship, CSS Georgia , while trying to convince several European powers to help stop the war. Following the war, Maury was eventually pardoned; he accepted a teaching position at
435-724: A commodore (often a title of courtesy ) in the Virginia Provisional Navy and a Commander in the Confederacy. Buildings on several college campuses are named in his honor. Maury Hall was the home of the Naval Science Department at the University of Virginia and headquarters of the university's Navy ROTC battalion until being renamed in 2022. The original building of the College of William & Mary Virginia Institute of Marine Science
580-770: A confederation of seafaring peoples contributed to the New Kingdom 's collapse in 1069 BC, commencing the Third Intermediate Period . Egypt's collapse liberated the more Egyptianised Kingdom of Kush in Nubia, who manoeuvred into power in Upper Egypt and conquered Lower Egypt in 754 BC to form the Kushite Empire . The Kushites ruled for a century and oversaw a revival in pyramid building , until they were driven out of Egypt by
725-557: A principality into a major power on the trade route between Rome and India through conquering its unfortunately unknown neighbours, gaining a monopoly on Indian Ocean trade in the region. Aksum's rise had them rule over much of the regions from Lake Tana to the valley of the Nile , and they further conquered parts of the ailing Kingdom of Kush , led campaigns against the Noba and Beja peoples, and expanded into South Arabia . This led
870-616: A Berber tribe originally from Yafran (also known as Ifrane ) in northwestern Libya , as well as the city of Ifrane in Morocco . Under Roman rule, Carthage became the capital of the province then named Africa Proconsularis , following its defeat of the Carthaginians in the Third Punic War in 146 BC, which also included the coastal part of modern Libya . The Latin suffix -ica can sometimes be used to denote
1015-497: A collection of all medals struck by Pope Pius IX during his pontificate, a book dedication and more from Father Angelo Secchi , who was a student of Maury from 1848 to 1849 in the United States Naval Observatory . The two remained lifelong friends. Other religious friends of Maury included James Hervey Otey , his former teacher who, before 1857, worked with Bishop Leonidas Polk on the construction of
1160-690: A few years, nations owning three-fourths of the shipping of the world were sending their oceanographic observations to Maury at the Naval Observatory, where the information was evaluated and the results were given worldwide distribution. As its representative at the conference, the United States sent Maury. As a result of the Brussels Conference, many nations, including many traditional enemies, agreed to cooperate in sharing land and sea weather data using uniform standards. It
1305-710: A former Italian colony, gained independence. In 1956, Tunisia and Morocco won their independence from France. Ghana followed suit the next year (March 1957), becoming the first of the sub-Saharan colonies to be granted independence. Over the next decade, waves of decolonization took place across the continent, culminating in the 1960 Year of Africa and the establishment of the Organisation of African Unity in 1963. Portugal's overseas presence in sub-Saharan Africa (most notably in Angola , Cape Verde, Mozambique , Guinea-Bissau , and São Tomé and Príncipe) lasted from
1450-564: A land (e.g., in Celtica from Celtae , as used by Julius Caesar ). The later Muslim region of Ifriqiya , following its conquest of the Byzantine (Eastern Roman) Empire's Exarchatus Africae , also preserved a form of the name. According to the Romans, Africa lies to the west of Egypt, while "Asia" was used to refer to Anatolia and lands to the east. A definite line was drawn between
1595-473: A land system of weather observations. Maury became convinced that adequate scientific knowledge of the sea could be obtained only through international cooperation. He proposed that the United States invite the maritime nations of the world to a conference to establish a "universal system" of meteorology, and he was the leading spirit of a pioneer scientific conference when it met in Brussels in 1853. Within
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#17327651081891740-480: A look through the facility's telescope. As a sailor, Maury noted numerous lessons that ship masters had learned about the effects of adverse winds and drift currents on the path of a ship. The captains recorded the lessons faithfully in their logbooks, which were then forgotten. At the Observatory, Maury uncovered an enormous collection of thousands of old ships' logs and charts in storage in trunks dating back to
1885-698: A millennium. Towards the end of the ancient period, northern Ethiopia and Eritrea bore the Kingdom of D'mt beginning in 980 BC. In modern-day Somalia and Djibouti there was the Macrobian Kingdom , with archaeological discoveries indicating the possibility of other unknown sophisticated civilisations at this time. After D'mt's fall in the 5th century BC the Ethiopian Plateau came to be ruled by numerous smaller unknown kingdoms who experienced strong south Arabian influence , until
2030-625: A monopoly on gold heading north and salt heading south, despite not controlling the gold fields themselves, located in the forest regions . It is probable that Wagadu's dominance on trade allowed for the gradual consolidation of many polities into a confederated state , whose composites stood in varying relations to the core, from fully administered to nominal tribute-paying parity. Based on large tumuli scattered across West Africa dating to this period, it has been stipulated that relative to Wagadu, there were further simultaneous and preceding kingdoms that have unfortunately been lost to time. At
2175-410: A naming commission created by federal law to reexamine Confederate-related names and symbols on military installations. James Madison University also has a Maury Hall, the university's first academic and administrative building. In the wake of the 2020 George Floyd protests , JMU student organizations called for renaming the building. On Monday, June 22, 2020, hearing the calls of students and alums,
2320-586: A native Libyan tribe, an ancestor of modern Berbers ; see Terence for discussion. The name had usually been connected with the Phoenician word ʿafar meaning "dust", but a 1981 hypothesis has asserted that it stems from the Berber word ifri (plural ifran ) meaning "cave", in reference to cave dwellers. The same word may be found in the name of the Banu Ifran from Algeria and Tripolitania ,
2465-722: A school for the Navy that would rival the Army's United States Military Academy . That reform was heavily pushed by Maury's "Scraps from the Lucky Bag" and other articles printed in the newspapers, bringing about many changes in the Navy, including his finally fulfilled dream of the creation of the United States Naval Academy . During its first 1848 meeting, he helped launch the American Association for
2610-468: A transition from " informal imperialism " – military influence and economic dominance – to direct rule. Imperial rule by Europeans continued until after the conclusion of World War II , when almost all remaining colonial territories gradually obtained formal independence. Independence movements in Africa gained momentum following World War II, which left the major European powers weakened. In 1951, Libya,
2755-636: A warm surface current pushing into the Arctic, and logs of old whaling ships indicated that whales killed in the Atlantic bore harpoons from ships in the Pacific (and vice versa). The frequency of these occurrences seemed unlikely if the whales had traveled around Cape Horn . Lieutenant Maury published his Wind and Current Chart of the North Atlantic , which showed sailors how to use the ocean's currents and winds to their advantage, drastically reducing
2900-606: Is named Maury Hall as well. Another Maury Hall housed the Electrical and Computer Engineering Department and the Robotics and Control Engineering Department at the United States Naval Academy in Annapolis, Maryland . On February 17, 2023, the academy announced that it had renamed this building in honor of Jimmy Carter , the only Naval Academy graduate to become President of the United States. The change had been recommended by
3045-791: Is not always to be taken literally. Africa is considered by most paleoanthropologists to be the oldest inhabited territory on Earth, with the Human species originating from the continent. During the mid-20th century, anthropologists discovered many fossils and evidence of human occupation perhaps as early as seven million years ago ( Before present , BP). Fossil remains of several species of early apelike humans thought to have evolved into modern humans, such as Australopithecus afarensis radiometrically dated to approximately 3.9–3.0 million years BP, Paranthropus boisei (c. 2.3–1.4 million years BP) and Homo ergaster (c. 1.9 million–600,000 years BP) have been discovered. After
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#17327651081893190-825: Is surrounded by the Mediterranean Sea to the north, the Arabian Plate and the Gulf of Aqaba to the northeast, the Indian Ocean to the southeast and the Atlantic Ocean to the west. The continent includes Madagascar and various archipelagos . It contains 54 fully recognised sovereign states , eight cities and islands that are part of non-African states , and two de facto independent states with limited or no recognition . This count does not include Malta and Sicily , which are geologically part of
3335-671: The 11th dynasty , based in Thebes , conquered the others to form the Middle Kingdom of Egypt , with the 12th dynasty expanding into Lower Nubia at the expense of Kerma . In 1700 BC, the Middle Kingdom fractured in two, ushering in the Second Intermediate Period . The Hyksos , a militaristic people from Palestine , invaded and conquered Lower Egypt, while Kerma coordinated invasions deep into Egypt to reach its greatest extent. In 1550 BC,
3480-646: The 18th dynasty expelled the Hyksos , and established the New Kingdom of Egypt . Using the advanced military technology the Hyksos had brought, the New Kingdom conquered the Levant from the Canaanites , Mittani , Amorites , and Hittites , and extinguished Kerma , incorporating Nubia into the empire, and sending the Egyptian empire into its golden age. Internal struggles, drought, famine, and invasions by
3625-1143: The American Civil War , Maury joined the Confederacy. Upon his resignation from the U.S. Navy, the Virginia governor appointed Maury commander of the Virginia Navy. When this was consolidated into the Confederate Navy, Maury was made a Commander in the Confederate States Navy and appointed as chief of the Naval Bureau of Coast, Harbor, and River Defense. In this role, Maury helped develop the first electrically controlled naval mine, which caused havoc for U.S. shipping. He'd had experience with transatlantic cable and electricity flowing through wires underwater when working with Cyrus West Field and Samuel Finley Breese Morse . The naval mines, called torpedoes at that time, were similar to present-day contact mines and were said by
3770-685: The Benin Empire . Towards the end of the 3rd century AD, a wet period in the Sahel created areas for human habitation and exploitation that had not been habitable for the best part of a millennium, with the Kingdom of Wagadu , the local name of the Ghana Empire , rising out of the Tichitt culture , growing wealthy following the introduction of the camel to the western Sahel, revolutionising
3915-526: The Cold War , and neocolonialism . Despite this low concentration of wealth, recent economic expansion and a large and young population make Africa an important economic market in the broader global context. Africa has a large quantity of natural resources and food resources, including diamonds , sugar , salt , gold , iron , cobalt , uranium , copper , bauxite , silver , petroleum , natural gas , cocoa beans , and tropical fruit . The continent
4060-579: The Confederacy during the American Civil War. He was nicknamed "Pathfinder of the Seas" and is considered a founder of modern oceanography. He wrote extensively on the subject, and his book, The Physical Geography of the Sea (1855), was the first comprehensive work on oceanography to be published. In 1825, at 19, Maury obtained, through U.S. Representative Sam Houston , a midshipman's warrant in
4205-904: The Congo Basin , the Empire of Kitara in the African Great Lakes , the Luba Empire in the Upemba Depression , the Kilwa Sultanate in the Swahili coast by crowding out Azania , with Rhapta being its last stronghold by the 1st century AD, and forming various city states constituting the Swahili civilisation . These migrations also prefaced the Kingdom of Mapungubwe in the Zambezi basin . After reaching
4350-746: The Ekoi civilisation rose circa 2nd century AD, and are most notable for constructing the Ikom monoliths and developing the Nsibidi script . Pre-colonial Africa possessed as many as 10,000 different states and polities. These included small family groups of hunter-gatherers such as the San people of southern Africa; larger, more structured groups such as the family clan groupings of the Bantu peoples of central, southern, and eastern Africa; heavily structured clan groups in
4495-617: The Fatimids , Almoravids , Almohads , Ayyubids , Mamluks , Kongo , Mwene Muji , Luba , Lunda , Kitara , Aksum , Ethiopia , Adal , Ajuran , Kilwa , Sakalava , Imerina , Maravi , Mutapa , Rozvi , Mthwakazi , and Zulu . Slave trades created various diasporas , especially in the Americas . From the late 19th century to early 20th century, driven by the Second Industrial Revolution , most of Africa
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4640-631: The Horn of Africa ; the large Sahelian kingdoms ; and autonomous city-states and kingdoms, such as those of the Akan ; Edo , Yoruba , and Igbo people in West Africa; and the Swahili coastal trading towns of Southeast Africa. By the 9th century AD, a string of dynastic states, including the earliest Hausa states, stretched across the sub-Saharan savannah from the western regions to central Sudan. The most powerful of these states were Ghana , Gao , and
4785-747: The Isthmus of Suez in Egypt. Other migrations of modern humans within the African continent have been dated to that time, with evidence of early human settlement found in Southern Africa, Southeast Africa, North Africa, and the Sahara . The size of the Sahara has historically been extremely variable, with its area rapidly fluctuating and at times disappearing depending on global climatic conditions. At
4930-401: The Kanem-Bornu Empire . Ghana declined in the eleventh century, but was succeeded by the Mali Empire , which consolidated much of western Sudan in the thirteenth century. Kanem accepted Islam in the eleventh century. In the forested regions of the West African coast, independent kingdoms grew with little influence from the Muslim north. The Kingdom of Nri , which was ruled by the Eze Nri ,
5075-472: The Kingdom of Dahomey , and the Oyo Empire ) adopted different ways of adapting to the shift. Asante and Dahomey concentrated on the development of "legitimate commerce" in the form of palm oil , cocoa , timber and gold, forming the bedrock of West Africa's modern export trade. The Oyo Empire, unable to adapt, collapsed into civil wars. The Scramble for Africa was the conquest and colonisation of most of Africa by seven Western European powers driven by
5220-509: The Mariners' Museum property and is encircled by a walking trail. The Maury River , entirely in Rockbridge County, Virginia , near Virginia Military Institute (where Maury taught), also honors the scientist, as does Maury crater , on the Moon. Matthew Fontaine Maury High School in Norfolk, Virginia, is named after him. Matthew Maury Elementary School in Alexandria, Virginia , was built in 1929. Nearby Arlington, Va., renamed its 1910 Clarendon Elementary to honor Maury in 1944; Since 1976,
5365-439: The Mauro-Roman Kingdom and its numerous successor polities in the Maghreb, namely the kingdoms of Ouarsenis , Aurès , and Altava . The Vandals ruled Ifriqiya for a century until Byzantine reconquest in the early 6th century AD. The Byzantines and the Berber kingdoms fought minor inconsequential conflicts, such as in the case of Garmul , however largely coexisted. Further inland to the Byzantine Exarchate of Africa were
5510-429: The Mississippi River , Amazon River and Niger River ). The Fundy Basin on the Atlantic coast of North America between New Brunswick and Nova Scotia in Canada is evidence of the ancestral Mid-Atlantic Ridge. Matthew Fontaine Maury Matthew Fontaine Maury (January 14, 1806 – February 1, 1873) was an American oceanographer and naval officer, serving the United States and then joining
5655-512: The Noba caused their disintegration into Makuria , Alodia , and Nobatia in the 5th century AD. The Romans managed to hold on to Egypt for the rest of the ancient period. In the Horn of Africa , there was the Land of Punt , a kingdom on the Red Sea , likely located in modern-day Eritrea or northern Somaliland . The Ancient Egyptians initially traded via middle-men with Punt until in 2350 BC when they established direct relations. They would become close trading partners for over
5800-430: The Nok culture from 1500 BC in modern-day Nigeria , the Daima culture around Lake Chad from 550 BC, Djenné-Djenno from 250 BC in modern-day Mali , and the Serer civilisation in modern-day Senegal , which built the Senegambian stone circles from the 3rd century BC. There is also detailed record of Igodomigodo , a small kingdom founded presumably in 40 BC, which would later go on to form
5945-399: The Ovambo kingdoms , most of which were later conquered. The 1884 Berlin Conference regulated European colonisation and trade in Africa, and is seen as emblematic of the "scramble". In the last quarter of the 19th century, there were considerable political rivalries between the European empires , which provided the impetus for the colonisation. The later years of the 19th century saw
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6090-404: The Punic Wars against the expansionary Roman Republic , however momentum in these wars was not linear, with Carthage initially experiencing considerable success in the Second Punic War following Hannibal 's infamous crossing of the alps into northern Italy . Their defeat and subsequent collapse of their empire would produce two further polities in the Maghreb; Numidia , which had assisted
6235-447: The Romans in 30 BC. The Crisis of the Third Century in the Roman Empire freed the Levantine city state of Palmyra , which conquered Egypt ; their brief rule ended when they were reconquered by the Romans . In the midst of this, Kush regained independence from Egypt, and they would persist as a major regional power until, having been weakened from internal rebellion amid worsening climatic conditions, invasions by Aksum and
6380-494: The Sanhaja in modern-day Algeria , a broad grouping of three groupings of tribal confederations , one of which is the Masmuda grouping in modern-day Morocco , along with the nomadic Zenata ; their composite tribes would later go onto shape much of North African history . In the western Sahel the rise of settled communities occurred largely as a result of the domestication of millet and of sorghum . Archaeology points to sizable urban populations in West Africa beginning in
6525-488: The Sao civilisation flourished for over a millennium beginning in the 6th century BC, in territory that later became part of present-day Cameroon and Chad . Sao artifacts show that they were skilled workers in bronze , copper , and iron , with finds including bronze sculptures, terracotta statues of human and animal figures, coins, funerary urns, household utensils, jewellery, highly decorated pottery, and spears. Nearby, around Lake Ejagham in south-west Cameroon ,
6670-419: The Sassanid Empire and the Himyarite Kingdom in Arabia. The Maghreb and Ifriqiya were mostly cut off from the cradle of civilisation in Egypt by the Libyan desert , exacerbated by Egyptian boats being tailored to the Nile and not coping well in the open Mediterranean Sea . This caused its societies to develop contiguous to those of Southern Europe , until Phoenician settlements came to dominate
6815-417: The Second Industrial Revolution during the era of " New Imperialism " (1833–1914): Belgium , France , Germany , United Kingdom , Italy , Portugal and Spain . In 1870, 10% of the continent was formally under European control. By 1914, this figure had risen to almost 90%; the only states retaining sovereignty were Liberia , Ethiopia , Egba , Aussa , Senusiyya , Mbunda , the Dervish State , and
6960-458: The Tjörnes fracture zone connects Iceland to the Kolbeinsey Ridge . The ridge sits atop a geologic feature known as the Mid-Atlantic Rise , which is a progressive bulge that runs the length of the Atlantic Ocean, with the ridge resting on the highest point of this linear bulge. This bulge is thought to be caused by upward convective forces in the asthenosphere pushing the oceanic crust and lithosphere . This divergent boundary first formed in
7105-410: The Triassic period, when a series of three-armed grabens coalesced on the supercontinent Pangaea to form the ridge. Usually, only two arms of any given three-armed graben become part of a divergent plate boundary. The failed arms are called aulacogens , and the aulacogens of the Mid-Atlantic Ridge eventually became many of the large river valleys seen along the Americas and Africa (including
7250-654: The University of Tennessee . From statements that he made in letters, it appears that he preferred being close to General Robert E. Lee in Lexington, where Lee was president of Washington College. Maury served as a pallbearer for Lee. He also gave talks in Europe about cooperation on a weather bureau for land, just as he had charted the winds and predicted storms at sea many years before. He gave speeches until his last days when he collapsed while giving one. He went home after he recovered and told his wife Ann Hull Herndon-Maury, "I have come home to die." He died at home in Lexington at 12:40 pm on Saturday, February 1, 1873. He
7395-409: The University of the South in Tennessee. While visiting there, Maury was convinced by his old teacher to give the "cornerstone speech." As a U.S. Navy officer, he was required to decline awards from foreign nations. Some were offered to Maury's wife, Ann Hull Herndon-Maury, who accepted them for her husband. Some have been placed at Virginia Military Institute or lent to the Smithsonian . He became
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#17327651081897540-496: The Virginia Military Institute in Lexington, Virginia . He died at the institute in 1873 after he had completed an exhausting state-to-state lecture tour on national and international weather forecasting on land. He had also completed his book, Geological Survey of Virginia , and a new series on geography for young people. Maury was a descendant of the Maury family, a prominent Virginia family of Huguenot ancestry that can be traced back to 15th-century France . His grandfather (
7685-411: The Wind and Current Chart of the North Atlantic , which showed sailors how to use the ocean's currents and winds to their advantage, drastically reducing the length of ocean voyages. Maury's uniform system of recording oceanographic data was adopted by navies and merchant marines worldwide and was used to develop charts for all the major trade routes. With the outbreak of the American Civil War , Maury,
7830-404: The Zambezi , the Bantu continued southward, with eastern groups continuing to modern-day Mozambique and reaching Maputo in the 2nd century AD. Further to the south, settlements of Bantu peoples who were iron-using agriculturists and herdsmen were well established south of the Limpopo River by the 4th century AD, displacing and absorbing the Khoisan . By the Chari River south of Lake Chad
7975-402: The epicenter of many earthquakes . Ewing, Heezen and Tharp discovered that the ridge is part of a 40,000-km (25,000 mile) long essentially continuous system of mid-ocean ridges on the floors of all the Earth's oceans. The discovery of this worldwide ridge system led to the theory of seafloor spreading and general acceptance of Alfred Wegener 's theory of continental drift and expansion in
8120-419: The presidential system of rule. However, few of them have been able to sustain democratic governments on a permanent basis—per the criteria laid out by Lührmann et al. (2018), only Botswana and Mauritius have been consistently democratic for the entirety of their post-colonial history. Most African countries have experienced several coups or periods of military dictatorship . Between 1990 and 2018, though,
8265-780: The trans-Saharan trade that linked their capital and Aoudaghost with Tahert and Sijilmasa in North Africa. Soninke traditions likely contain content from prehistory, mentioning four previous foundings of Wagadu , and holds that the final founding of Wagadu occurred after their first king did a deal with Bida , a serpent deity who was guarding a well, to sacrifice one maiden a year in exchange for assurance regarding plenty of rainfall and gold supply. Wagadu's core traversed modern-day southern Mauritania and western Mali , and Soninke tradition portrays early Ghana as warlike, with horse-mounted warriors key to increasing its territory and population, although details of their expansion are extremely scarce. Wagadu made its profits from maintaining
8410-410: The tropic of Cancer , in the northern temperate zone . In the other extreme of the continent, southern Namibia , southern Botswana , great parts of South Africa , the entire territories of Lesotho and Eswatini and the southern tips of Mozambique and Madagascar are located below the tropic of Capricorn , in the southern temperate zone . Africa is highly biodiverse ; it is the continent with
8555-424: The written word . During the colonial period , oral sources were deprecated by European historians, which gave them the impression Africa had no recorded history. African historiography became organized at the academic level in the mid-20th century, and saw a movement towards utilising oral sources in a multidisciplinary approach, culminating in the General History of Africa , edited by specialists from across
8700-459: The 16th and 19th centuries. In West Africa, the decline of the Atlantic slave trade in the 1820s caused dramatic economic shifts in local polities. The gradual decline of slave-trading, prompted by a lack of demand for slaves in the New World , increasing anti-slavery legislation in Europe and America, and the British Royal Navy's increasing presence off the West African coast, obliged African states to adopt new economies. Between 1808 and 1860,
8845-420: The 16th century to 1975, after the Estado Novo regime was overthrown in a military coup in Lisbon . Rhodesia unilaterally declared independence from the United Kingdom in 1965, under the white minority government of Ian Smith , but was not internationally recognized as an independent state (as Zimbabwe ) until 1980, when black nationalists gained power after a bitter guerrilla war . Although South Africa
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#17327651081898990-423: The 1st and 4th cataracts of the Nile . The 4th dynasty oversaw the height of the Old Kingdom , and constructed many great pyramids . Under the 6th dynasty power gradually decentralised to the nomarchs, culminating in the disintegration of the kingdom, exacerbated by drought and famine, thus commencing the First Intermediate Period in 2200 BC. This shattered state would last until 2055 BC when
9135-406: The 2nd century BC Mauretania fought alongside Numidia's Jugurtha in the Jugurthine War against the Romans after he had usurped the Numidian throne from a Roman ally. Together they inflicted heavy casualties that quaked the Roman Senate , with the war only ending inconclusively when Mauretania's Bocchus I sold out Jugurtha to the Romans. At the turn of the millennium, they both would face
9280-418: The 4th millennium BC the Congo Basin was inhabited by the Bambenga , Bayaka , Bakoya , and Babongo in the west, the Bambuti in the east , and the Batwa who were widely scattered and also present in the Great Lakes region ; together they are grouped as Pygmies . On the later-named Swahili coast there were Cushitic -speaking peoples, and the Khoisan (a neologism for the Khoekhoe and San ) in
9425-416: The 4th millennium BC, which had crucially developed iron metallurgy by 1200 BC, in both smelting and forging for tools and weapons. Extensive east-west belts of deserts , grasslands , and forests from north to south were crucial for the moulding of their respective societies and meant that prior to the accession of trans-Saharan trade routes , symbiotic trade relations developed in response to
9570-426: The Advancement of Science (AAAS). In 1849, Maury spoke out on the need for a transcontinental railroad to join the Eastern United States to California . He recommended a southerly route with Memphis, Tennessee , as the eastern terminus, as it is equidistant from Lake Michigan and the Gulf of Mexico . He argued that a southerly route running through Texas would avoid winter snows and could open up commerce with
9715-405: The African continent. Algeria is Africa's largest country by area, and Nigeria is its largest by population. African nations cooperate through the establishment of the African Union , which is headquartered in Addis Ababa . Africa straddles the equator and the prime meridian . It is the only continent to stretch from the northern temperate to the southern temperate zones. The majority of
9860-457: The Assyrians in 663 BC in reprisal for their expansion towards the Assyrian Empire . The Assyrians installed a puppet dynasty that later gained independence and once more unified Egypt , until they were conquered by the Achaemenid Empire in 525 BC. Egypt regained independence under the 28th dynasty in 404 BC but they were reconquered by the Achaemenids in 343 BC. The conquest of Achaemenid Egypt by Alexander
10005-422: The British West Africa Squadron seized approximately 1,600 slave ships and freed 150,000 Africans who were aboard. Action was also taken against African leaders who refused to agree to British treaties to outlaw the trade, for example against "the usurping King of Lagos ", deposed in 1851. Anti-slavery treaties were signed with over 50 African rulers. The largest powers of West Africa (the Asante Confederacy ,
10150-462: The Confederacy. Maury traveled to England, Ireland, and France, acquiring and fitting out ships for the Confederacy and soliciting supplies. Through speeches and newspaper publications, Maury unsuccessfully called for European nations to intercede on behalf of the Confederacy and help end the American Civil War. Maury established relations for the Confederacy with Emperor Napoleon III of France and Archduke Maximilian of Austria , who, on April 10, 1864,
10295-421: The Great in 332 BC marked the beginning of Hellenistic rule and the installation of the Macedonian Ptolemaic dynasty in Egypt. The Ptolemaics lost their holdings outside of Africa to the Seleucids in the Syrian Wars , expanded into Cyrenaica and subjugated Kush in the 3rd century BC. In the 1st century BC, Ptolemaic Egypt became entangled in a Roman civil war , leading to its conquest by
10440-581: The Iberian peninsula during the eleventh century. The Banu Hilal and Banu Ma'qil were a collection of Arab Bedouin tribes from the Arabian Peninsula who migrated westwards via Egypt between the eleventh and thirteenth centuries. Their migration resulted in the fusion of the Arabs and Berbers, where the locals were Arabized , and Arab culture absorbed elements of the local culture, under
10585-627: The Mid-Atlantic Ridge, from north to south, with their respective highest peaks and location, are: Northern Hemisphere (North Atlantic Ridge) : Southern Hemisphere (South Atlantic Ridge) : The submarine section of the Mid-Atlantic Ridge close to southwest Iceland is known as the Reykjanes Ridge . The Mid-Atlantic Ridge runs through Iceland where the ridge is also known as the Neovolcanic Zone . In northern Iceland
10730-563: The Persian prophet Mani to consider Aksum as one of the four great powers of the 3rd century AD alongside Persia , Rome , and China . In the 4th century AD Aksum's king converted to Christianity and Aksum's population, who had followed syncretic mixes of local beliefs , slowly followed. The end of the 5th century saw Aksum allied with the Byzantine Empire , who viewed themselves as defenders of Christendom , balanced against
10875-584: The R/V Matthew F. Maury . The ship is used for oceanography research and student cruises. In March 2013, the U.S. Navy launched the oceanographic survey ship USNS Maury (T-AGS-66), in 2023 the ship was renamed USNS Marie Tharp . The Mariners' Lake , in Newport News, Virginia , had been named after Maury but had its name changed during the George Floyd protests . The lake is located on
11020-680: The Reverend James Maury ) was an inspiring teacher to a future U.S. president, Thomas Jefferson . Maury also had Dutch-American ancestry from the Minor family of early Virginia. He was born in 1806 in Spotsylvania County, Virginia , near Fredericksburg ; his parents were Richard Maury and Diane Minor Maury. The family moved to Franklin, Tennessee when he was five. He wanted to emulate the naval career of his older brother, Flag Lieutenant John Minor Maury , an officer in
11165-575: The Romans in the Second Punic War, Mauretania , a Mauri tribal kingdom and home of the legendary King Atlas , and various tribes such as Garamantes , Musulamii , and Bavares . The Third Punic War would result in Carthage's total defeat in 146 BC and the Romans established the province of Africa , with Numidia assuming control of many of Carthage's African ports. Towards the end of
11310-833: The Sahara region was becoming increasingly dry and hostile. Around 3500 BC, due to a tilt in the Earth's orbit , the Sahara experienced a period of rapid desertification. The population trekked out of the Sahara region towards the Nile Valley below the Second Cataract where they made permanent or semi-permanent settlements. A major climatic recession occurred, lessening the heavy and persistent rains in Central and Eastern Africa . Since this time, dry conditions have prevailed in Eastern Africa and, increasingly during
11455-522: The Saharan climate started to become drier at an exceedingly fast pace. This climate change caused lakes and rivers to shrink significantly and caused increasing desertification . This, in turn, decreased the amount of land conducive to settlements and encouraged migrations of farming communities to the more tropical climate of West Africa. During the first millennium BC, a reduction in wild grain populations related to changing climate conditions facilitated
11600-539: The Secretary of the Navy in 1865 "to have cost the Union more vessels than all other causes combined." In September 1862, Maury, partly because of his international reputation, and partly due to jealousy of superior officers who wanted him placed at some distance, was ordered on special service to England. There, he sought to purchase and fit ships for the Confederacy and persuade European powers to recognize and support
11745-632: The South, including those in Richmond, Virginia, Fletcher, North Carolina , Franklin, Tennessee , and several in Chancellorsville, Virginia . The Matthew Fontaine Maury Papers collection at the Library of Congress contains over 14,000 items. It documents Maury's extensive career and scientific endeavors, including correspondence, notebooks, lectures, and written speeches. On July 2, 2020,
11890-402: The U.S. Navy, who caught yellow fever after fighting pirates . As a result of John's painful death, Matthew's father, Richard, forbade him from joining the Navy. Maury strongly considered attending West Point to get a better education than the Navy could offer. Instead, he obtained a naval appointment through the influence of Tennessee Representative Sam Houston , a family friend, in 1825, at
12035-547: The USN 1854 Darien Exploration Expedition , and others. Their duty at the observatory was always temporary, and new men had to be trained repeatedly. Thus Lt. Maury was simultaneously employed with astronomical and nautical work, as well as constantly training new temporary men to assist in these works. As his reputation grew, the competition among young midshipmen to be assigned to work with him intensified. Thus, he always had able assistants. Maury advocated for naval reform, including
12180-616: The United States Navy. As a midshipman on board the frigate USS Brandywine , he almost immediately began to study the seas and record methods of navigation. When a leg injury left him unfit for sea duty, Maury devoted his time to studying navigation, meteorology, winds, and currents. He became Superintendent of the Depot of Charts and Instruments, later renamed the United States Naval Observatory , in 1844. There, Maury studied thousands of ships' logs and charts. He published
12325-814: The Virginia Military Institute library. Maury was initially buried in the Gilham family vault in Lexington's cemetery, across from Stonewall Jackson , until, after some delay, his remains were taken through Goshen Pass to Richmond, Virginia the following year He was reburied between Presidents James Monroe and John Tyler in Hollywood Cemetery in Richmond, Virginia. After decades of national and international work, Maury received fame and honors, including being knighted by several nations and given medals with precious gems as well as
12470-589: The advice of Robert E. Lee and other friends, he decided not to return to Virginia but sent a letter of surrender to U.S. naval forces in the Gulf of Mexico and headed for Mexico. There Maximilian , whom he had met in Europe, appointed him "Imperial Commissioner of Colonization". Maury and Maximilian planned to entice former Confederates to emigrate to Mexico, building Carlotta and New Virginia Colony for displaced Confederates and immigrants from other lands. Upon learning of
12615-498: The age of 19. Maury joined the Navy as a midshipman on board the frigate Brandywine , which was carrying the elderly Marquis de La Fayette home to France following his famous 1824 visit to the United States . Almost immediately, Maury began to study the seas and to record methods of navigation . One of the experiences that piqued this interest was circumnavigating the globe on the USS ; Vincennes , his assigned ship and
12760-790: The building has been home to the Arlington Arts Center (rebranded in 2022 as the Museum of Contemporary Art Arlington). There is a county historical marker outside the former school. Matthew Fontaine Maury School in Fredericksburg was built in 1919-1920 and closed in 1980. The building was converted into condominiums and is on the National Register of Historic Places. Adjoining it is Maury Stadium, built in 1935 and still used for local high school sports events. Numerous historical markers commemorate Maury throughout
12905-550: The continent and its countries are in the Northern Hemisphere , with a substantial portion and a number of countries in the Southern Hemisphere . Most of the continent lies in the tropics, except for a large part of Western Sahara , Algeria , Libya and Egypt , the northern tip of Mauritania , and the entire territories of Morocco , Ceuta , Melilla , and Tunisia , which in turn are located above
13050-463: The continent as a whole has trended towards more democratic governance. Upon independence an overwhelming majority of Africans lived in extreme poverty . The continent suffered from the lack of infrastructural or industrial development under colonial rule, along with political instability. With limited financial resources or access to global markets, relatively stable countries such as Kenya still experienced only very slow economic development. Only
13195-424: The continent most vulnerable to climate change . The history of Africa is long, complex, and varied, and has often been under-appreciated by the global historical community . In African societies the oral word is revered, and they have generally recorded their history via oral tradition , which has led anthropologists to term them oral civilisations, contrasted with literate civilisations which pride
13340-461: The continent's south. The Bantu expansion constituted a major series of migrations of Bantu peoples from central Africa to eastern and southern Africa and was substantial in the settling of the continent. Commencing in the 2nd millennium BC, the Bantu began to migrate from Cameroon to central, eastern, and southern Africa, laying the foundations for future states such as the Kingdom of Kongo in
13485-478: The continent. Africa, particularly Eastern Africa , is widely accepted to be the place of origin of humans and the Hominidae clade , also known as the great apes . The earliest hominids and their ancestors have been dated to around 7 million years ago, and Homo sapiens (modern human) are believed to have originated in Africa 350,000 to 260,000 years ago. Africa is also considered by anthropologists to be
13630-424: The creation of what would eventually become the Naval Observatory. Maury occasionally hosted Adams, who enjoyed astronomy as an avocation, at the Naval Observatory. Concerned that Maury always had a long trek to and from his home on upper Pennsylvania Avenue, Adams introduced an appropriations bill that funded a Superintendent's House on the Observatory grounds. Adams thus felt no constraint in regularly stopping by for
13775-428: The earliest instances of agriculture in human history. Its cultivation would gradually spread across Africa, before spreading to India around 2000 BC. People around modern-day Mauritania started making pottery and built stone settlements (e.g., Tichitt , Oualata ). Fishing, using bone-tipped harpoons , became a major activity in the numerous streams and lakes formed from the increased rains. In West Africa,
13920-543: The end of the Ice ages , estimated to have been around 10,500 BC, the Sahara had again become a green fertile valley, and its African populations returned from the interior and coastal highlands in sub-Saharan Africa , with rock art paintings depicting a fertile Sahara and large populations discovered in Tassili n'Ajjer dating back perhaps 10 millennia. However, the warming and drying climate meant that by 5,000 BC,
14065-642: The evolution of Homo sapiens approximately 350,000 to 260,000 years BP in Africa, the continent was mainly populated by groups of hunter-gatherers . These first modern humans left Africa and populated the rest of the globe during the Out of Africa II migration dated to approximately 50,000 years BP, exiting the continent either across Bab-el-Mandeb over the Red Sea , the Strait of Gibraltar in Morocco, or
14210-660: The expansion of farming communities and the rapid adoption of rice cultivation around the Niger River. By the first millennium BC, ironworking had been introduced in Northern Africa. Around that time it also became established in parts of sub-Saharan Africa, either through independent invention there or diffusion from the north and vanished under unknown circumstances around 500 AD, having lasted approximately 2,000 years, and by 500 BC, metalworking began to become commonplace in West Africa. Ironworking
14355-408: The first U.S. warship to travel around the world. Maury's seagoing days ended abruptly at the age of 33 after he broke his right leg in a stagecoach accident. After that he studied naval meteorology, navigation, and charting the winds and currents. He told his family that his work was inspired by Psalm 8, "Thou madest him to have dominion over the works of thy hands... and whatsoever passeth through
14500-548: The future location for a transatlantic telegraph cable . The existence of such a ridge was confirmed by sonar in 1925 and was found to extend around Cape Agulhas into the Indian Ocean by the German Meteor expedition . In the 1950s, mapping of the Earth's ocean floors by Marie Tharp , Bruce Heezen , Maurice Ewing , and others revealed that the Mid-Atlantic Ridge had a strange bathymetry of valleys and ridges, with its central valley being seismologically active and
14645-506: The growth and expansion of Aksum in the 1st century BC. Along the Horn's coast there were many ancient Somali city-states that thrived off of the wider Red Sea trade and transported their cargo via beden , exporting myrrh , frankincense , spices , gum , incense , and ivory , with freedom from Roman interference causing Indians to give the cities a lucrative monopoly on cinnamon from ancient India . The Kingdom of Aksum grew from
14790-443: The historical process is largely a communal one, with eyewitness accounts, hearsay , reminiscences, and occasionally visions , dreams, and hallucinations, crafted into oral traditions . Time is sometimes mythical and social, and truth generally viewed as relativist . Oral tradition can be exoteric or esoteric . It speaks to people according to their understanding, unveiling itself in accordance with their aptitudes, and
14935-676: The institution of slavery has been termed "proslavery international". Maury, along with other politicians, newspaper editors, merchants, and United States government officials, envisioned a future for slavery that linked the United States, the Caribbean Sea, and the Amazon basin in Brazil. He believed the future of United States commerce lay in South America, colonized by white southerners and their enslaved people. There, Maury claimed,
15080-572: The kingdoms of Lower Egypt and Upper Egypt in northeast Africa . Around 3100 BC Upper Egypt conquered Lower Egypt to unify Egypt under the 1st dynasty , with the process of consolidation and assimilation completed by the time of the 3rd dynasty who formed the Old Kingdom of Egypt in 2686 BC. The Kingdom of Kerma emerged around this time to become the dominant force in Nubia , controlling territory as large as Egypt between
15225-513: The largest number of megafauna species, as it was least affected by the extinction of the Pleistocene megafauna . However, Africa also is heavily affected by a wide range of environmental issues , including desertification, deforestation, water scarcity , and pollution . These entrenched environmental concerns are expected to worsen as climate change impacts Africa . The UN Intergovernmental Panel on Climate Change has identified Africa as
15370-616: The last 200 years, in Ethiopia . The domestication of cattle in Africa preceded agriculture and seems to have existed alongside hunter-gatherer cultures. It is speculated that by 6,000 BC, cattle were domesticated in North Africa. In the Sahara-Nile complex, people domesticated many animals, including the donkey and a small screw-horned goat that was common from Algeria to Nubia . Between 10,000 and 9,000 BC, pottery
15515-531: The length of voyages. His Sailing Directions and Physical Geography of the Seas and Its Meteorology remain standard. Maury's uniform system of recording synoptic oceanographic data was adopted by navies and merchant marines around the world and was used to develop charts for all the major trade routes. Maury's Naval Observatory team included midshipmen assigned to him: James Melville Gilliss , Lieutenants John Mercer Brooke , William Lewis Herndon , Lardner Gibbon , Isaac Strain , John "Jack" Minor Maury II of
15660-634: The mayor of Richmond, Levar Stoney ordered the removal of a statue of Maury erected in 1929 on Richmond's Monument Avenue. The mayor used his emergency powers to bypass a state-mandated review process, calling the statue a "severe, immediate and growing threat to public safety." Africa Africa is the world's second-largest and second-most populous continent after Asia . At about 30.3 million km (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. With nearly 1.4 billion people as of 2021, it accounts for about 18% of
15805-471: The modified form of plate tectonics . The ridge is central to the breakup of the hypothetical supercontinent of Pangaea that began some 180 million years ago. The Mid-Atlantic Ridge includes a deep rift valley that runs along the axis of the ridge for nearly its entire length. This rift marks the actual boundary between adjacent tectonic plates, where magma from the mantle reaches the seafloor, erupting as lava and producing new crustal material for
15950-660: The most genetically diverse continent as a result of being the longest inhabited. In the 4th and 3rd millennia BC Ancient Egypt , Kerma , Punt , and the Tichitt Tradition emerged in North , East and West Africa , while from 4000 BC until 1000 AD the Bantu expansion was substantial in laying the foundations for societies and states in Central , East , and Southern Africa . Some African empires include Wagadu , Mali , Songhai , Sokoto , Ife , Benin , Asante ,
16095-399: The most lucrative trading locations in the Gulf of Tunis . Phoenician settlements subsequently grew into Ancient Carthage after gaining independence from Phoenicia in the 6th century BC, and they would build an extensive empire and a strict mercantile network, all secured by one of the largest and most powerful navies in the ancient Mediterranean . Carthage would meet its demise in
16240-496: The northern states of Mexico . Maury also advocated construction of a railroad across the Isthmus of Panama . For his scientific endeavors, Maury was elected to the American Philosophical Society in 1852. Maury also called for an international sea and land weather service. Having charted the seas and currents, he worked on charting land weather forecasting. Congress refused to appropriate funds for
16385-439: The official religion, built mosques, and brought to Gao Muslim scholars, including al-Maghili (d.1504), the founder of an important tradition of Sudanic African Muslim scholarship. By the eleventh century, some Hausa states – such as Kano , Jigawa , Katsina , and Gobir – had developed into walled towns engaging in trade, servicing caravans , and the manufacture of goods. Until the fifteenth century, these small states were on
16530-465: The opportunities afforded by north–south diversity in ecosystems. Various civilisations prospered in this period. From 4000 BC, the Tichitt culture in modern-day Mauritania and Mali was the oldest known complexly organised society in West Africa, with a four tiered hierarchical social structure. Other civilisations include the Kintampo culture from 2500 BC in modern-day Ghana ,
16675-551: The paths of the seas." As officer-in-charge of the United States Navy office in Washington, DC , called the "Depot of Charts and Instruments," the young lieutenant became a librarian of the many unorganized log books and records in 1842. On his initiative, he sought to improve seamanship by organizing the information in his office and instituting a reporting system among the nation's shipmasters to gather further information on sea conditions and observations. The product of his work
16820-478: The periphery of the major Sudanic empires of the era, paying tribute to Songhai to the west and Kanem-Borno to the east. Slavery had long been practiced in Africa. Between the 15th and the 19th centuries, the Atlantic slave trade took an estimated 7–12 million slaves to the New World. In addition, more than 1 million Europeans were captured by Barbary pirates and sold as slaves in North Africa between
16965-493: The plan, Lee wrote Maury saying, "The thought of abandoning the country, and all that must be left in it, is abhorrent to my feelings, and I prefer to struggle for its restoration, and share its fate, rather than to give up all as lost." In the end, the plan did not attract the intended immigrants and Maximilian, facing increasing opposition in Mexico, ended it. Maury then returned to England in 1866 and found work there. In 1868 he
17110-828: The plates. Near the equator , the Mid-Atlantic Ridge is divided into the North Atlantic Ridge and the South Atlantic Ridge by the Romanche Trench , a narrow submarine trench with a maximum depth of 7,758 m (25,453 ft), one of the deepest locations of the Atlantic Ocean. This trench, however, is not regarded as the boundary between the North and South American plates, nor the Eurasian and African plates. The islands on or near
17255-599: The predecessor to the African Union. The nascent countries decided to keep their colonial borders, with traditional power structures used in governance to varying degrees. Afri was a Latin name used to refer to the inhabitants of what was then known as northern Africa , located west of the Nile river, and in its widest sense referring to all lands south of the Mediterranean , also known as Ancient Libya . This name seems to have originally referred to
17400-412: The proposals, and Maury's proposal received little or no support in the United States, especially in the South, which sought to perpetuate the institution and the riches made off the yoke of slavery. By 1855, the proposal had failed. Brazil authorized free navigation to all nations in the Amazon in 1866, only when it was at war against Paraguay, when free navigation in the area had become necessary. Maury
17545-501: The river highways of the Amazon valley". Brazil maintained legal enslavement but had prohibited the importation of newly enslaved people from Africa in 1850 under the pressure of the British. Maury proposed that moving people enslaved in the United States to Brazil would reduce or eliminate slavery over time in as many areas of the southern United States as possible and would end new enslavement for Brazil. Maury's primary concern, however,
17690-480: The same fate as Carthage and be conquered by the Romans who established Mauretania and Numidia as provinces of their empire, while Musulamii , led by Tacfarinas , and Garamantes were eventually defeated in war in the 1st century AD however weren't conquered. In the 5th century AD the Vandals conquered north Africa precipitating the fall of Rome . Swathes of indigenous peoples would regain self-governance in
17835-463: The slave trade that accompanied his scientific achievements. Maury staunchly opposed secession, but in 1860, he wrote letters to the governors of New Jersey, Pennsylvania, Delaware, and Maryland urging them to stop the momentum toward war. When Virginia declared secession in April 1861, Maury nonetheless resigned his commission in the U.S. Navy, choosing to fight against the North. With the outbreak of
17980-415: The start of the U.S. Navy. He pored over the documents, collecting information on winds, calms, and currents for all seas in all seasons. His dream was to put that information in the hands of all captains. Maury's work on ocean currents and investigations of the whaling industry led him to suspect that a warm-water, ice-free northern passage existed between the Atlantic and Pacific. He thought he detected
18125-488: The two continents by the geographer Ptolemy (85–165 CE), indicating Alexandria along the Prime Meridian and making the isthmus of Suez and the Red Sea the boundary between Asia and Africa. As Europeans came to understand the real extent of the continent, the idea of "Africa" expanded with their knowledge. Other etymological hypotheses have been postulated for the ancient name "Africa": In African societies,
18270-496: The unifying framework of Islam. Following the breakup of Mali, a local leader named Sonni Ali (1464–1492) founded the Songhai Empire in the region of middle Niger and the western Sudan and took control of the trans-Saharan trade. Sonni Ali seized Timbuktu in 1468 and Jenne in 1473, building his regime on trade revenues and the cooperation of Muslim merchants. His successor Askia Mohammad I (1493–1528) made Islam
18415-532: The university president announced it would recommend to the JMU board of visitors to rename Maury Hall, along with Ashby Hall and Jackson Hall. Ships have been named in his honor, including various vessels named USS Maury ; USS Commodore Maury (SP-656), a patrol vessel and minesweeper of World War I; and a World War II Liberty Ship . Additionally, Tidewater Community College, based in Norfolk, Virginia , owns
18560-516: The wet phase ushered in an expanding rainforest and wooded savanna from Senegal to Cameroon . Between 9,000 and 5,000 BC, Niger–Congo speakers domesticated the oil palm and raffia palm . Black-eyed peas and voandzeia (African groundnuts), were domesticated, followed by okra and kola nuts . Since most of the plants grew in the forest, the Niger–Congo speakers invented polished stone axes for clearing forest. Around 4,000 BC,
18705-497: The world's human population . Africa's population is the youngest among all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Based on 2024 projections, Africa's population will reach 3.8 billion people by 2099. Africa is the least wealthy inhabited continent per capita and second-least wealthy by total wealth, ahead of Oceania . Scholars have attributed this to different factors including geography , climate , corruption , colonialism ,
18850-418: Was rapidly conquered and colonised by European nations , save for Ethiopia and Liberia . European rule had significant impacts on Africa's societies , and colonies were maintained for the purpose of economic exploitation and extraction of natural resources. Most present states emerged from a process of decolonisation following World War II , and established the Organisation of African Unity in 1963,
18995-616: Was "work to be done by Africans with the American axe in his hand." In the 1850s, he studied a way to send Virginia's slaves to Brazil as a way to phase out slavery in the state gradually. Maury was aware of an 1853 survey of the Amazon region conducted by the Navy Lt. William Lewis Herndon. The 1853 expedition aimed to map the area for trade so that American traders could go "with their goods and chattels [including enslaved people] to settle and to trade goods from South American countries along
19140-503: Was established around the ninth century, making it one of the oldest kingdoms in present-day Nigeri. The Nri kingdom is famous for its elaborate bronzes , found at the town of Igbo-Ukwu . The Kingdom of Ife , historically the first of these Yoruba city-states or kingdoms, established government under a priestly oba ('king' or 'ruler' in the Yoruba language ), called the Ooni of Ife . Ife
19285-416: Was exhausted from traveling throughout the nation giving speeches promoting land meteorology. His eldest son, Major Richard Launcelot Maury, and son-in-law, Major Spottswood Wellford Corbin, attended him at the time. Maury asked his daughters and wife to leave the room. His last words, recorded verbatim, were "all's well," a nautical expression meaning calm conditions at sea. His body was placed on display in
19430-450: Was fully established by roughly 500 BC in many areas of East and West Africa, although other regions did not begin ironworking until the early centuries AD. Copper objects from Egypt , North Africa, Nubia, and Ethiopia dating from around 500 BC have been excavated in West Africa, suggesting that Trans-Saharan trade networks had been established by this date. From 3500 BC, nomes (ruled by nomarchs ) coalesced to form
19575-609: Was independently invented in the region of Mali in the savannah of West Africa. In the steppes and savannahs of the Sahara and Sahel in Northern West Africa, people possibly ancestral to modern Nilo-Saharan and Mandé cultures started to collect wild millet , around 8,000 to 6,000 BC. Later, gourds , watermelons , castor beans , and cotton were also collected. Sorghum was first domesticated in Eastern Sudan around 4,000 BC, in one of
19720-485: Was international recognition and the publication in 1847 of Wind and Current Chart of the North Atlantic , causing the change of purpose and renaming of the depot to the United States Naval Observatory and Hydrographical Office in 1854. He held that position until his resignation in April 1861. Maury was one of the principal advocates for founding a national observatory and he appealed to a science enthusiast and former U.S. president, Representative John Quincy Adams , for
19865-542: Was neither the freedom of enslaved people nor the amelioration of slavery in Brazil, but rather an absolution for slaveholders of Virginia and other southern states. Maury wrote to his cousin, "Therefore I see in the slave territory of the Amazon the SAFETY VALVE of the Southern States." Maury wanted to open up the Amazon to free navigation in his plan. However, Emperor Pedro II 's government firmly rejected
20010-433: Was not an enslaver, but he did not actively oppose the institution of slavery. An article tying his legacy in oceanography to the slave trade suggested that Maury was ambivalent about slavery, seeing it as wrong but not intent on forcing others to free enslaved people. However, a recent article explaining the removal of his monument from Monument Avenue in Richmond, Virginia, illustrated a proslavery stance through deep ties to
20155-616: Was noted as a major religious and cultural centre in West Africa and for its unique naturalistic tradition of bronze sculpture. The Ife model of government was adapted by the Oyo Empire , whose obas, called the Alaafins of Oyo , controlled many other Yoruba and non-Yoruba city-states and kingdoms including the Fon Kingdom of Dahomey . The Almoravids were a Berber dynasty from the Sahara that spread over northwestern Africa and
20300-407: Was offered the position as its first president but turned it down because of his age. He had previously been suggested as president of the College of William & Mary in Williamsburg, Virginia , in 1848 by Benjamin Blake Minor in his publication the Southern Literary Messenger . He considered becoming president of St. John's College in Annapolis, Maryland, the University of Alabama , and
20445-514: Was one of the first African countries to gain independence, the state remained under the control of the country's white minority, initially through qualified voting rights and from 1956 by a system of racial segregation known as apartheid , until 1994. Today, Africa contains 54 sovereign countries. Since independence, African states have frequently been hampered by instability, corruption, violence, and authoritarianism. The vast majority of African states are republics that operate under some form of
20590-446: Was pardoned by the federal government and returned to the US, accepting a teaching position at the Virginia Military Institute in Lexington, Virginia, holding the chair of physics. While in Lexington, he completed a physical survey of Virginia, which he documented in the book The Physical Geography of Virginia . He had once been a gold mining superintendent outside Fredericksburg and had studied geology intensely during that time, so he
20735-430: Was proclaimed Emperor of Mexico. At an early stage in the war, the Confederate States Congress assigned Maury and Francis H. Smith, a mathematics professor at the University of Virginia, to develop a system of weights and measures. Maury was in the West Indies on his way back to the Confederacy when he learned of its collapse. The war had brought ruin to many in Fredericksburg, where Maury's immediate family lived. On
20880-415: Was soon after the Brussels conference that Prussia, Spain, Sardinia, the Free City of Hamburg, the Republic of Bremen, Chile, Austria, Brazil, and others agreed to join the enterprise. The Pope established honorary flags of distinction for the ships of the Papal States, which could be awarded only to the vessels that filled out and sent to Maury in Washington, DC, the Maury abstract logs. Maury's stance on
21025-493: Was well-equipped to write such a book. He aimed to assist war-torn Virginia in rebuilding by discovering and extracting minerals, improving farming, etc. He lectured extensively in the United States and abroad. He advocated for creating a state agricultural college as an adjunct to Virginia Military Institute. This led to the establishment at Blacksburg of the Virginia Agricultural and Mechanical College , later renamed Virginia Polytechnic Institute and State University, in 1872. Maury
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