Ilhéus ( Portuguese: [iˈʎɛws] ) is a major city located in the southern coastal region of Bahia , Brazil , 211 km south of Salvador , the state's capital. The city was founded in 1534 as Vila de São Jorge dos Ilhéus and is known as one of the most important tourism centers of the northeast of Brazil.
163-568: As of 2020 Ilhéus had approximately 159,923 inhabitants, with an area of 1850 km sq, and its downtown is located 1 km away from the Atlantic Ocean . Ilhéus has a tropical rainforest climate ( Köppen : Af ). The municipality contains a small part of the 23,262 hectares (57,480 acres) Una Wildlife Refuge , which surrounds the Una Biological Reserve in the neighboring municipality of Una . It contains 15% of
326-492: A World Heritage Site for their geological value, four of them are considered of "Outstanding Universal Value" based on their cultural and natural criteria: Þingvellir , Iceland; Landscape of the Pico Island Vineyard Culture , Portugal; Gough and Inaccessible Islands , United Kingdom; and Brazilian Atlantic Islands: Fernando de Noronha and Atol das Rocas Reserves, Brazil. Continental shelves in
489-563: A northwest passage to Asia via the North Atlantic. Cabot sailed in 1497, five years after the first voyage of Christopher Columbus , and made landfall on the coast of Newfoundland . He believed he had reached Asia, and there was no attempt to found a colony. Cabot led another voyage to the Americas the following year but did not return; it is unknown what happened to his ships. No further attempts to establish English colonies in
652-506: A Navy Sonic Depth Finder to draw a continuous map across the bed of the Atlantic. This involved little guesswork because the idea of sonar is straightforward with pulses being sent from the vessel, which bounce off the ocean floor, then return to the vessel. The deep ocean floor is thought to be fairly flat with occasional deeps, abyssal plains , trenches , seamounts , basins , plateaus , canyons , and some guyots . Various shelves along
815-657: A branch of the Gulf Stream which flows northward from the Grand Banks ; and the Subpolar Front , an extension of the North Atlantic Current, a wide, vaguely defined region separating the subtropical gyre from the subpolar gyre. This system of currents transports warm water into the North Atlantic, without which temperatures in the North Atlantic and Europe would plunge dramatically. North of
978-471: A contest of ideologies between the two nations. It was not only Britain's position on the world stage that was at risk: Napoleon threatened to invade Britain itself, just as his armies had overrun many countries of continental Europe . The Napoleonic Wars were therefore ones in which Britain invested large amounts of capital and resources to win. French ports were blockaded by the Royal Navy , which won
1141-629: A decisive victory over a French Imperial Navy - Spanish Navy fleet at the Battle of Trafalgar in 1805. Overseas colonies were attacked and occupied, including those of the Netherlands, which was annexed by Napoleon in 1810. France was finally defeated by a coalition of European armies in 1815. Britain was again the beneficiary of peace treaties: France ceded the Ionian Islands , Malta (which it had occupied in 1798), Mauritius , St Lucia ,
1304-719: A dependency of the New South Wales colony. From 16 June 1840 New South Wales laws applied in New Zealand. This transitional arrangement ended with the Charter for Erecting the Colony of New Zealand on 16 November 1840. The Charter stated that New Zealand would be established as a separate Crown colony on 3 May 1841 with Hobson as its governor. During the 19th century, Britain and the Russian Empire vied to fill
1467-623: A form that attempted to be more inclusive by showcasing the empire as a family of newly birthed nations with common roots. The last decades of the 19th century saw concerted political campaigns for Irish home rule . Ireland had been united with Britain into the United Kingdom of Great Britain and Ireland with the Act of Union 1800 after the Irish Rebellion of 1798 , and had suffered a severe famine between 1845 and 1852. Home rule
1630-529: A larger decolonisation movement, in which Britain granted independence to most territories of the empire. The Suez Crisis of 1956 confirmed Britain's decline as a global power, and the handover of Hong Kong to China on 1 July 1997 symbolised for many the end of the British Empire, though fourteen overseas territories that are remnants of the empire remain under British sovereignty . After independence, many former British colonies, along with most of
1793-843: A major power in the Indian subcontinent after the East India Company 's conquest of Mughal Bengal at the Battle of Plassey in 1757. The American War of Independence resulted in Britain losing some of its oldest and most populous colonies in North America by 1783. While retaining control of British North America (now Canada ) and territories in and near the Caribbean in the British West Indies , British colonial expansion turned towards Asia, Africa , and
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#17327718947811956-588: A minor settlement, and other treaty ports including Shanghai . During the late 18th and early 19th centuries, the British Crown began to assume an increasingly large role in the affairs of the company. A series of Acts of Parliament were passed, including the Regulating Act of 1773 , Pitt's India Act of 1784 and the Charter Act of 1813 which regulated the company's affairs and established
2119-458: A patent to Humphrey Gilbert for discovery and overseas exploration. That year, Gilbert sailed for the Caribbean with the intention of engaging in piracy and establishing a colony in North America, but the expedition was aborted before it had crossed the Atlantic. In 1583, he embarked on a second attempt. On this occasion, he formally claimed the harbour of the island of Newfoundland, although no settlers were left behind. Gilbert did not survive
2282-558: A perceived violation of the guaranteed Rights of Englishmen . The American Revolution began with a rejection of Parliamentary authority and moves towards self-government. In response, Britain sent troops to reimpose direct rule, leading to the outbreak of war in 1775. The following year, in 1776, the Second Continental Congress issued the Declaration of Independence proclaiming the colonies' sovereignty from
2445-472: A rapid escalation in the number of slaves transported. British ships carried a third of all slaves shipped across the Atlantic—approximately 3.5 million Africans —until the abolition of the trade by Parliament in 1807 (see § Abolition of slavery ). To facilitate the shipment of slaves, forts were established on the coast of West Africa, such as James Island , Accra and Bunce Island . In
2608-481: A security threat to Great Britain or mark the beginning of the break-up of the empire. A second Home Rule bill was defeated for similar reasons. A third bill was passed by Parliament in 1914, but not implemented because of the outbreak of the First World War leading to the 1916 Easter Rising . By the turn of the 20th century, fears had begun to grow in Britain that it would no longer be able to defend
2771-848: A series of Anglo-Mysore wars in Southern India with the Sultanate of Mysore under Hyder Ali and then Tipu Sultan . Defeats in the First Anglo-Mysore war and stalemate in the Second were followed by victories in the Third and the Fourth . Following Tipu Sultan's death in the fourth war in the Siege of Seringapatam (1799) , the kingdom became a protectorate of the company. The East India Company fought three Anglo-Maratha Wars with
2934-675: A way station for its ships travelling to and from its colonies in the East Indies . Britain formally acquired the colony, and its large Afrikaner (or Boer ) population in 1806, having occupied it in 1795 to prevent its falling into French hands during the Flanders Campaign . British immigration to the Cape Colony began to rise after 1820, and pushed thousands of Boers , resentful of British rule, northwards to found their own—mostly short-lived— independent republics , during
3097-416: A weak Intertropical Convergence Zone , South Atlantic tropical cyclones are rare. The Atlantic Ocean is underlain mostly by dense mafic oceanic crust made up of basalt and gabbro and overlain by fine clay, silt and siliceous ooze on the abyssal plain. The continental margins and continental shelf mark lower density, but greater thickness felsic continental rock that is often much older than that of
3260-621: Is a complex of four water masses, two that form by deep convection in the open ocean – classical and upper Labrador sea water – and two that form from the inflow of dense water across the Greenland-Iceland-Scotland sill – Denmark Strait and Iceland-Scotland overflow water. Along its path across Earth the composition of the NADW is affected by other water masses, especially Antarctic bottom water and Mediterranean overflow water. The NADW
3423-467: Is fed by a flow of warm shallow water into the northern North Atlantic which is responsible for the anomalous warm climate in Europe. Changes in the formation of NADW have been linked to global climate changes in the past. Since human-made substances were introduced into the environment, the path of the NADW can be traced throughout its course by measuring tritium and radiocarbon from nuclear weapon tests in
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#17327718947813586-498: Is found off the eastern coast of Canada. Surface water temperatures, which vary with latitude, current systems, and season and reflect the latitudinal distribution of solar energy, range from below −2 °C (28 °F) to over 30 °C (86 °F). Maximum temperatures occur north of the equator, and minimum values are found in the polar regions. In the middle latitudes, the area of maximum temperature variations, values may vary by 7–8 °C (13–14 °F). From October to June
3749-575: Is interrupted by larger transform faults at two places: the Romanche Trench near the Equator and the Gibbs fracture zone at 53°N . The MAR is a barrier for bottom water, but at these two transform faults deep water currents can pass from one side to the other. The MAR rises 2–3 km (1.2–1.9 mi) above the surrounding ocean floor and its rift valley is the divergent boundary between
3912-854: Is intersected by two perpendicular ridges: the Azores–Gibraltar Transform Fault , the boundary between the Nubian and Eurasian plates , intersects the MAR at the Azores triple junction , on either side of the Azores microplate, near the 40°N . A much vaguer, nameless boundary, between the North American and South American plates, intersects the MAR near or just north of the Fifteen-Twenty fracture zone , approximately at 16°N . In
4075-729: Is now northern and central Brazil. The formation of the Central American Isthmus closed the Central American Seaway at the end of the Pliocene 2.8 Ma ago. The formation of the isthmus resulted in the migration and extinction of many land-living animals, known as the Great American Interchange , but the closure of the seaway resulted in a "Great American Schism" as it affected ocean currents, salinity, and temperatures in both
4238-794: Is now the Carpathian region, that were similar to the Sargasso Sea. It is possible that the population in the Sargasso Sea migrated to the Atlantic as the Tethys closed at the end of the Miocene around 17 Ma. The origin of the Sargasso fauna and flora remained enigmatic for centuries. The fossils found in the Carpathians in the mid-20th century often called the "quasi-Sargasso assemblage", finally showed that this assemblage originated in
4401-505: Is seen by some historians as the event defining the transition between the first and second empires, in which Britain shifted its attention away from the Americas to Asia, the Pacific and later Africa. Adam Smith 's Wealth of Nations , published in 1776, had argued that colonies were redundant, and that free trade should replace the old mercantilist policies that had characterised the first period of colonial expansion, dating back to
4564-985: The Iliad and the Odyssey , this all-encompassing ocean was instead known as Oceanus , the gigantic river that encircled the world; in contrast to the enclosed seas well known to the Greeks: the Mediterranean and the Black Sea. In contrast, the term "Atlantic" originally referred specifically to the Atlas Mountains in Morocco and the sea off the Strait of Gibraltar and the West African coast. The term " Aethiopian Ocean ", derived from Ancient Ethiopia ,
4727-725: The Acts of Union 1707 . The 18th century saw the newly united Great Britain rise to be the world's dominant colonial power, with France becoming its main rival on the imperial stage. Great Britain, Portugal, the Netherlands, and the Holy Roman Empire continued the War of the Spanish Succession, which lasted until 1714 and was concluded by the Treaty of Utrecht . Philip V of Spain renounced his and his descendants' claim to
4890-741: The Age of Discovery , it was known for separating the New World of the Americas ( North America and South America ) from the Old World of Afro-Eurasia ( Africa , Asia , and Europe ). Through its separation of Afro-Eurasia from the Americas, the Atlantic Ocean has played a central role in the development of human society, globalization, and the histories of many nations. While the Norse were
5053-671: The American War of Independence towards the end of the 18th century, has been referred to by some historians as the "First British Empire". England's early efforts at colonisation in the Americas met with mixed success. An attempt to establish a colony in Guiana in 1604 lasted only two years and failed in its main objective to find gold deposits. Colonies on the Caribbean islands of St Lucia (1605) and Grenada (1609) rapidly folded. The first permanent English settlement in
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5216-707: The British economy . Added to this was the cost of suppressing regular slave rebellions . With support from the British abolitionist movement, Parliament enacted the Slave Trade Act in 1807, which abolished the slave trade in the empire. In 1808, Sierra Leone Colony was designated an official British colony for freed slaves. Parliamentary reform in 1832 saw the influence of the West India Committee decline. The Slavery Abolition Act , passed
5379-564: The Carpathian Basin from where it migrated over Sicily to the central Atlantic where it evolved into modern species of the Sargasso Sea. The location of the spawning ground for European eels remained unknown for decades . In the early 19th century it was discovered that the southern Sargasso Sea is the spawning ground for both the European and American eel and that the former migrate more than 5,000 km (3,100 mi) and
5542-610: The Columbian exchange while occasionally hosting naval battles. Such naval battles, as well as growing trade from regional American powers like the United States and Brazil , both increased in degree during the early 20th century, and while no major military conflicts have taken place in the Atlantic recently, the ocean remains a core component of trade around the world. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to
5705-415: The Equator . The oldest known mentions of an "Atlantic" sea come from Stesichorus around mid-sixth century BC (Sch. A. R. 1. 211): Atlantikôi pelágei (Ancient Greek: Ἀτλαντικῷ πελάγει , ' the Atlantic sea ' , etym . ' Sea of Atlas ' ) and in The Histories of Herodotus around 450 BC (Hdt. 1.202.4): Atlantis thalassa (Ancient Greek: Ἀτλαντὶς θάλασσα , ' Sea of Atlas ' or '
5868-418: The First Anglo-Afghan War was a disaster for Britain. When Russia invaded the Ottoman Balkans in 1853, fears of Russian dominance in the Mediterranean and the Middle East led Britain and France to enter the war in support of the Ottoman Empire and invade the Crimean Peninsula to destroy Russian naval capabilities. The ensuing Crimean War (1854–1856), which involved new techniques of modern warfare ,
6031-408: The Government of India Act 1858 , establishing the British Raj , where an appointed governor-general administered India and Queen Victoria was crowned the Empress of India . India became the empire's most valuable possession, "the Jewel in the Crown", and was the most important source of Britain's strength. A series of serious crop failures in the late 19th century led to widespread famines on
6194-458: The Great Trek of the late 1830s and early 1840s. In the process the Voortrekkers clashed repeatedly with the British, who had their own agenda with regard to colonial expansion in South Africa and to the various native African polities, including those of the Sotho people and the Zulu Kingdom . Eventually, the Boers established two republics that had a longer lifespan: the South African Republic or Transvaal Republic (1852–1877; 1881–1902) and
6357-412: The Icelandic Low produces frequent storms. Icebergs are common from early February to the end of July across the shipping lanes near the Grand Banks of Newfoundland . The ice season is longer in the polar regions, but there is little shipping in those areas. Hurricanes are a hazard in the western parts of the North Atlantic during the summer and autumn. Due to a consistently strong wind shear and
6520-422: The Khedivate of Egypt into the 20th century, it was officially a vassal state of the Ottoman Empire and not part of the British Empire. The French were still majority shareholders and attempted to weaken the British position, but a compromise was reached with the 1888 Convention of Constantinople , which made the Canal officially neutral territory. With competitive French, Belgian and Portuguese activity in
6683-414: The Mahdist Army in 1896 and rebuffed an attempted French invasion at Fashoda in 1898. Sudan was nominally made an Anglo-Egyptian condominium , but a British colony in reality. British gains in Southern and East Africa prompted Cecil Rhodes , pioneer of British expansion in Southern Africa , to urge a " Cape to Cairo " railway linking the strategically important Suez Canal to the mineral-rich south of
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6846-447: The Maratha Confederacy . The First Anglo-Maratha War ended in 1782 with a restoration of the pre-war status quo . The Second and Third Anglo-Maratha wars resulted in British victories. After the surrender of Peshwa Bajirao II on 1818, the East India Company acquired control of a large majority of the Indian subcontinent. Britain was challenged again by France under Napoleon, in a struggle that, unlike previous wars, represented
7009-426: The Munster Plantations , in 16th century Ireland by settling it with English and Welsh Protestant settlers. England had already colonised part of the country following the Norman invasion of Ireland in 1169. Several people who helped establish the Munster plantations later played a part in the early colonisation of North America, particularly a group known as the West Country Men . In 1578, Elizabeth I granted
7172-428: The North American and Eurasian plates in the North Atlantic and the South American and African plates in the South Atlantic. The MAR produces basaltic volcanoes in Eyjafjallajökull , Iceland, and pillow lava on the ocean floor. The depth of water at the apex of the ridge is less than 2,700 m (1,500 fathoms ; 8,900 ft ) in most places, while the bottom of the ridge is three times as deep. The MAR
7335-405: The North Atlantic Drift is thought to have at least some influence on climate. For example, the Gulf Stream helps moderate winter temperatures along the coastline of southeastern North America, keeping it warmer in winter along the coast than inland areas. The Gulf Stream also keeps extreme temperatures from occurring on the Florida Peninsula. In the higher latitudes, the North Atlantic Drift, warms
7498-451: The North Atlantic oscillation , occurs. On average, the Atlantic is the saltiest major ocean; surface water salinity in the open ocean ranges from 33 to 37 parts per thousand (3.3–3.7%) by mass and varies with latitude and season. Evaporation, precipitation, river inflow and sea ice melting influence surface salinity values. Although the lowest salinity values are just north of the equator (because of heavy tropical rainfall), in general,
7661-409: The Orange Free State (1854–1902). In 1902 Britain occupied both republics, concluding a treaty with the two Boer Republics following the Second Boer War (1899–1902). In 1869 the Suez Canal opened under Napoleon III , linking the Mediterranean Sea with the Indian Ocean . Initially the Canal was opposed by the British; but once opened, its strategic value was quickly recognised and became
7824-419: The Pacific . After the defeat of France in the Napoleonic Wars (1803–1815), Britain emerged as the principal naval and imperial power of the 19th century and expanded its imperial holdings. It pursued trade concessions in China and Japan, and territory in Southeast Asia . The " Great Game " and " Scramble for Africa " also ensued. The period of relative peace (1815–1914) during which the British Empire became
7987-411: The Royal African Company was granted a monopoly on the supply of slaves to the British colonies in the Caribbean. The company would transport more slaves across the Atlantic than any other, and significantly grew England's share of the trade, from 33 per cent in 1673 to 74 per cent in 1683. The removal of this monopoly between 1688 and 1712 allowed independent British slave traders to thrive, leading to
8150-500: The Saint John and Saint Croix river valleys, then part of Nova Scotia , felt too far removed from the provincial government in Halifax , so London split off New Brunswick as a separate colony in 1784. The Constitutional Act of 1791 created the provinces of Upper Canada (mainly English speaking ) and Lower Canada (mainly French-speaking ) to defuse tensions between the French and British communities, and implemented governmental systems similar to those employed in Britain, with
8313-442: The Scotia Sea , and other tributary water bodies. Including these marginal seas the coast line of the Atlantic measures 111,866 km (69,510 mi) compared to 135,663 km (84,297 mi) for the Pacific. Including its marginal seas, the Atlantic covers an area of 106,460,000 km (41,100,000 sq mi) or 23.5% of the global ocean and has a volume of 310,410,900 km (74,471,500 cu mi) or 23.3% of
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#17327718947818476-443: The Seychelles , and Tobago ; Spain ceded Trinidad ; the Netherlands ceded Guiana , Ceylon and the Cape Colony , while the Danish ceded Heligoland . Britain returned Guadeloupe , Martinique , French Guiana , and Réunion to France; Menorca to Spain; Danish West Indies to Denmark and Java and Suriname to the Netherlands. With the advent of the Industrial Revolution , goods produced by slavery became less important to
8639-441: The Treaty of Paris of 1763 had important consequences for the future of the British Empire. In North America, France's future as a colonial power effectively ended with the recognition of British claims to Rupert's Land, and the ceding of New France to Britain (leaving a sizeable French-speaking population under British control) and Louisiana to Spain. Spain ceded Florida to Britain. Along with its victory over France in India,
8802-417: The Victorian gold rush , making its capital Melbourne for a time the richest city in the world. The British also expanded their mercantile interests in the North Pacific. Spain and Britain had become rivals in the area, culminating in the Nootka Crisis in 1789. Both sides mobilised for war, but when France refused to support Spain it was forced to back down, leading to the Nootka Convention . The outcome
8965-454: The War of 1812 , and invaded Canadian territory. In response, Britain invaded the US, but the pre-war boundaries were reaffirmed by the 1814 Treaty of Ghent , ensuring Canada's future would be separate from that of the United States. Since 1718, transportation to the American colonies had been a penalty for various offences in Britain, with approximately one thousand convicts transported per year. Forced to find an alternative location after
9128-521: The meridional overturning circulation (MOC), the northward heat transport of which is threatened by anthropogenic climate change. Large variations in the subpolar gyre on a decade-century scale, associated with the North Atlantic oscillation , are especially pronounced in Labrador Sea Water , the upper layers of the MOC. The South Atlantic is dominated by the anti-cyclonic southern subtropical gyre. The South Atlantic Central Water originates in this gyre, while Antarctic Intermediate Water originates in
9291-545: The metropole and the entirety of the empire while at the same time maintaining the policy of "splendid isolation". Germany was rapidly rising as a military and industrial power and was now seen as the most likely opponent in any future war. Recognising that it was overstretched in the Pacific and threatened at home by the Imperial German Navy , Britain formed an alliance with Japan in 1902 and with its old enemies France and Russia in 1904 and 1907, respectively. Britain's fears of war with Germany were realised in 1914 with
9454-440: The protectionism of Spain and Portugal. The growth of trade between the newly independent United States and Britain after 1783 seemed to confirm Smith's view that political control was not necessary for economic success. The war to the south influenced British policy in Canada, where between 40,000 and 100,000 defeated Loyalists had migrated from the new United States following independence. The 14,000 Loyalists who went to
9617-399: The spice trade of the East Indies archipelago to the Netherlands and the textiles industry of India to England, but textiles soon overtook spices in terms of profitability. Peace between England and the Netherlands in 1688 meant the two countries entered the Nine Years' War as allies, but the conflict—waged in Europe and overseas between France, Spain and the Anglo-Dutch alliance—left
9780-399: The thermocline of the subtropical gyre. The Sargasso Sea in the western North Atlantic can be defined as the area where two species of Sargassum ( S. fluitans and natans ) float, an area 4,000 km (2,500 mi) wide and encircled by the Gulf Stream , North Atlantic Drift , and North Equatorial Current . This population of seaweed probably originated from Tertiary ancestors on
9943-475: The "Sugar Revolution" transformed the Caribbean economy in the mid-17th century. Large sugarcane plantations were first established in the 1640s on Barbados, with assistance from Dutch merchants and Sephardic Jews fleeing Portuguese Brazil . At first, sugar was grown primarily using white indentured labour , but rising costs soon led English traders to embrace the use of imported African slaves. The enormous wealth generated by slave-produced sugar made Barbados
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#173277189478110106-480: The "jugular vein of the Empire". In 1875, the Conservative government of Benjamin Disraeli bought the indebted Egyptian ruler Isma'il Pasha 's 44 per cent shareholding in the Suez Canal for £4 million (equivalent to £480 million in 2023). Although this did not grant outright control of the strategic waterway, it did give Britain leverage. Joint Anglo-French financial control over Egypt ended in outright British occupation in 1882. Although Britain controlled
10269-428: The 1730s. This trade, illegal since it was outlawed by China in 1729, helped reverse the trade imbalances resulting from the British imports of tea, which saw large outflows of silver from Britain to China. In 1839, the confiscation by the Chinese authorities at Canton of 20,000 chests of opium led Britain to attack China in the First Opium War , and resulted in the seizure by Britain of Hong Kong Island , at that time
10432-400: The 1870s, the Challenger expedition discovered parts of what is now known as the Mid-Atlantic Ridge, or: An elevated ridge rising to an average height of about 1,900 fathoms [3,500 m; 11,400 ft] below the surface traverses the basins of the North and South Atlantic in a meridianal direction from Cape Farewell, probably its far south at least as Gough Island, following roughly
10595-456: The 1920s. By the start of the 20th century, Germany and the United States had begun to challenge Britain's economic lead. Military, economic and colonial tensions between Britain and Germany were major causes of the First World War , during which Britain relied heavily on its empire. The conflict placed enormous strain on its military, financial, and manpower resources. Although the empire achieved its largest territorial extent immediately after
10758-434: The 1953 definition it extends south to Antarctica, while in later maps it is bounded at the 60° parallel by the Southern Ocean. The Atlantic has irregular coasts indented by numerous bays, gulfs and seas. These include the Baltic Sea , Black Sea , Caribbean Sea , Davis Strait , Denmark Strait , part of the Drake Passage , Gulf of Mexico , Labrador Sea , Mediterranean Sea , North Sea , Norwegian Sea , almost all of
10921-411: The 1960s and CFCs . The clockwise warm-water North Atlantic Gyre occupies the northern Atlantic, and the counter-clockwise warm-water South Atlantic Gyre appears in the southern Atlantic. In the North Atlantic, surface circulation is dominated by three inter-connected currents: the Gulf Stream which flows north-east from the North American coast at Cape Hatteras ; the North Atlantic Current ,
11084-474: The 9,275 hectares (22,920 acres) Serra do Conduru State Park , created in 1997. It contains part of the 157,745 hectares (389,800 acres) Lagoa Encantada e Rio Almada Environmental Protection Area , created in 1993. The APA is threatened by water pollution from sewage and garbage, since most of the communities have no sanitation. There are irregular settlements of squatters in the coastal area. Other threats include irregular fishing, deforestation, fires, hunting and
11247-414: The Americas was founded in 1607 in Jamestown by Captain John Smith , and managed by the Virginia Company ; the Crown took direct control of the venture in 1624, thereby founding the Colony of Virginia . Bermuda was settled and claimed by England as a result of the 1609 shipwreck of the Virginia Company's flagship , while attempts to settle Newfoundland were largely unsuccessful. In 1620, Plymouth
11410-511: The Americas were made until well into the reign of Queen Elizabeth I , during the last decades of the 16th century. In the meantime, Henry VIII 's 1533 Statute in Restraint of Appeals had declared "that this realm of England is an Empire". The Protestant Reformation turned England and Catholic Spain into implacable enemies. In 1562, Elizabeth I encouraged the privateers John Hawkins and Francis Drake to engage in slave-raiding attacks against Spanish and Portuguese ships off
11573-430: The Atlantic and Pacific. Marine organisms on both sides of the isthmus became isolated and either diverged or went extinct. British Empire The British Empire comprised the dominions , colonies , protectorates , mandates , and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts established by England in
11736-537: The Atlantic are wide off Newfoundland, southernmost South America, and northeastern Europe. In the western Atlantic carbonate platforms dominate large areas, for example, the Blake Plateau and Bermuda Rise . The Atlantic is surrounded by passive margins except at a few locations where active margins form deep trenches : the Puerto Rico Trench (8,376 m or 27,480 ft maximum depth) in
11899-682: The Atlantic include the Challenger expedition and the German Meteor expedition ; as of 2001 , Columbia University 's Lamont–Doherty Earth Observatory and the United States Navy Hydrographic Office conduct research on the ocean. The MAR divides the Atlantic longitudinally into two halves, in each of which a series of basins are delimited by secondary, transverse ridges. The MAR reaches above 2,000 m (6,600 ft) along most of its length, but
12062-403: The Atlantic north of the equator. The coldest zones are in high latitudes, with the coldest regions corresponding to the areas covered by sea ice. Ocean currents influence the climate by transporting warm and cold waters to other regions. The winds that are cooled or warmed when blowing over these currents influence adjacent land areas. The Gulf Stream and its northern extension towards Europe,
12225-557: The Atlantic sea ' ) where the name refers to "the sea beyond the pillars of Heracles " which is said to be part of the sea that surrounds all land. In these uses, the name refers to Atlas , the Titan in Greek mythology , who supported the heavens and who later appeared as a frontispiece in medieval maps and also lent his name to modern atlases . On the other hand, to early Greek sailors and in ancient Greek mythological literature such as
12388-633: The Bahamas, while coarse river outwash sands and silt are common in shallow shelf areas like the Georges Bank . Coarse sand, boulders, and rocks were transported into some areas, such as off the coast of Nova Scotia or the Gulf of Maine during the Pleistocene ice ages. The break-up of Pangaea began in the central Atlantic, between North America and Northwest Africa, where rift basins opened during
12551-669: The British Caribbean, the percentage of the population of African descent rose from 25 per cent in 1650 to around 80 per cent in 1780, and in the Thirteen Colonies from 10 per cent to 40 per cent over the same period (the majority in the southern colonies). The transatlantic slave trade played a pervasive role in British economic life, and became a major economic mainstay for western port cities. Ships registered in Bristol , Liverpool and London were responsible for
12714-551: The British Empire as the new United States of America . The entry of French and Spanish forces into the war tipped the military balance in the Americans' favour and after a decisive defeat at Yorktown in 1781, Britain began negotiating peace terms. American independence was acknowledged at the Peace of Paris in 1783. The loss of such a large portion of British America , at the time Britain's most populous overseas possession,
12877-608: The British defeated the Nawab of Bengal and his French allies, left the British East India Company in control of Bengal and as a major military and political power in India. France was left control of its enclaves but with military restrictions and an obligation to support British client states , ending French hopes of controlling India. In the following decades the British East India Company gradually increased
13040-453: The Earth's total land area. As a result, its constitutional , legal , linguistic , and cultural legacy is widespread. At the peak of its power, it was described as " the empire on which the sun never sets ", as the sun was always shining on at least one of its territories. During the Age of Discovery in the 15th and 16th centuries, Portugal and Spain pioneered European exploration of
13203-609: The English a stronger colonial power than the Dutch, who were forced to devote a larger proportion of their military budget to the costly land war in Europe. The death of Charles II of Spain in 1700 and his bequeathal of Spain and its colonial empire to Philip V of Spain , a grandson of the King of France , raised the prospect of the unification of France, Spain and their respective colonies, an unacceptable state of affairs for England and
13366-516: The European shores of the former Tethys Ocean and has, if so, maintained itself by vegetative growth , floating in the ocean for millions of years. Other species endemic to the Sargasso Sea include the sargassum fish , a predator with algae-like appendages which hovers motionless among the Sargassum . Fossils of similar fishes have been found in fossil bays of the former Tethys Ocean, in what
13529-716: The First World War, Britain was no longer the world's preeminent industrial or military power. In the Second World War , Britain's colonies in East Asia and Southeast Asia were occupied by the Empire of Japan . Despite the final victory of Britain and its allies , the damage to British prestige and the British economy helped accelerate the decline of the empire. India , Britain's most valuable and populous possession, achieved independence in 1947 as part of
13692-696: The French throne, and Spain lost its empire in Europe. The British Empire was territorially enlarged: from France, Britain gained Newfoundland and Acadia , and from Spain, Gibraltar and Menorca . Gibraltar became a critical naval base and allowed Britain to control the Atlantic entry and exit point to the Mediterranean . Spain ceded the rights to the lucrative asiento (permission to sell African slaves in Spanish America ) to Britain. With
13855-623: The Late Triassic and Early Jurassic. This period also saw the first stages of the uplift of the Atlas Mountains. The exact timing is controversial with estimates ranging from 200 to 170 Ma. The opening of the Atlantic Ocean coincided with the initial break-up of the supercontinent Pangaea , both of which were initiated by the eruption of the Central Atlantic Magmatic Province (CAMP), one of
14018-559: The Māori population. The UK government finally decided to act, dispatching Captain William Hobson with instructions to take formal possession after obtaining native consent. There was no central Māori authority able to represent all New Zealand so, on 6 February 1840, Hobson and many Māori chiefs signed the Treaty of Waitangi in the Bay of Islands; most other chiefs signing in stages over
14181-661: The Netherlands as a colonial power, in the short term the Netherlands' more advanced financial system and the three Anglo-Dutch Wars of the 17th century left it with a stronger position in Asia. Hostilities ceased after the Glorious Revolution of 1688 when the Dutch William of Orange ascended the English throne, bringing peace between the Dutch Republic and England. A deal between the two nations left
14344-613: The North Atlantic Gyre, the cyclonic North Atlantic Subpolar Gyre plays a key role in climate variability. It is governed by ocean currents from marginal seas and regional topography, rather than being steered by wind, both in the deep ocean and at sea level. The subpolar gyre forms an important part of the global thermohaline circulation . Its eastern portion includes eddying branches of the North Atlantic Current which transport warm, saline waters from
14507-683: The Northeastern region of Brazil. The plots of these and his other major works largely treat the lives of poor urban and rural black and mulatto communities of Bahia, as well as the land wars that raged in Ilhéus, where cocoa barons killed each other for power and cocoa plantations. Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceanic divisions , with an area of about 85,133,000 km (32,870,000 sq mi). It covers approximately 17% of Earth's surface and about 24% of its water surface area. During
14670-468: The Pacific between 1769 and 1777, James Cook visited New Zealand . He was followed by an assortment of Europeans and Americans which including whalers, sealers, escaped convicts from New South Wales, missionaries and adventurers. Initially, contact with the indigenous Māori people was limited to the trading of goods, although interaction increased during the early decades of the 19th century with many trading and missionary stations being set up, especially in
14833-675: The Pacific for the extension of the North American fur trade . Alexander Mackenzie of the North West Company led the first, starting out in 1792, and a year later he became the first European to reach the Pacific overland north of the Rio Grande , reaching the ocean near present-day Bella Coola . This preceded the Lewis and Clark Expedition by twelve years. Shortly thereafter, Mackenzie's companion, John Finlay , founded
14996-566: The Royal Navy during the Seven Years' War, and the two continued to co-operate in arenas outside India: the eviction of the French from Egypt (1799), the capture of Java from the Netherlands (1811), the acquisition of Penang Island (1786), Singapore (1819) and Malacca (1824), and the defeat of Burma (1826). From its base in India, the company had been engaged in an increasingly profitable opium export trade to Qing China since
15159-505: The Seven Years' War therefore left Britain as the world's most powerful maritime power . During the 1760s and early 1770s, relations between the Thirteen Colonies and Britain became increasingly strained, primarily because of resentment of the British Parliament's attempts to govern and tax American colonists without their consent. This was summarised at the time by the colonists' slogan " No taxation without representation ",
15322-501: The South Atlantic, and the "Atmospheric Bridge", which evaporates subtropical Atlantic waters and exports it to the Pacific. The Atlantic Ocean consists of four major, upper water masses with distinct temperature and salinity. The Atlantic subarctic upper water in the northernmost North Atlantic is the source for subarctic intermediate water and North Atlantic intermediate water. North Atlantic central water can be divided into
15485-762: The Spanish, and in 1666 succeeded in colonising the Bahamas . In 1670, Charles II incorporated by royal charter the Hudson's Bay Company (HBC), granting it a monopoly on the fur trade in the area known as Rupert's Land , which would later form a large proportion of the Dominion of Canada . Forts and trading posts established by the HBC were frequently the subject of attacks by the French, who had established their own fur trading colony in adjacent New France . Two years later,
15648-645: The annexation of the Dutch colony of New Netherland in 1664, following the capture of New Amsterdam , which was renamed New York . Although less financially successful than colonies in the Caribbean, these territories had large areas of good agricultural land and attracted far greater numbers of English emigrants, who preferred their temperate climates. The British West Indies initially provided England's most important and lucrative colonies. Settlements were successfully established in St. Kitts (1624), Barbados (1627) and Nevis (1628), but struggled until
15811-561: The apprenticeship system was abolished in 1838. The British government compensated slave-owners. Between 1815 and 1914, a period referred to as Britain's "imperial century" by some historians, around 10 million sq mi (26 million km ) of territory and roughly 400 million people were added to the British Empire. Victory over Napoleon left Britain without any serious international rival, other than Russia in Central Asia . Unchallenged at sea, Britain adopted
15974-644: The armies of the Dominions , as well as many thousands of volunteers from the Crown colonies. The contributions of Australian and New Zealand troops during the 1915 Gallipoli Campaign against the Ottoman Empire had a great impact on the national consciousness at home and marked a watershed in the transition of Australia and New Zealand from colonies to nations in their own right. The countries continue to commemorate this occasion on Anzac Day . Canadians viewed
16137-475: The atmosphere over the oceans, keeping the British Isles and northwestern Europe mild and cloudy, and not severely cold in winter, like other locations at the same high latitude. The cold water currents contribute to heavy fog off the coast of eastern Canada (the Grand Banks of Newfoundland area) and Africa's northwestern coast. In general, winds transport moisture and air over land areas. Every winter,
16300-589: The bulk of British slave trading. For the transported, harsh and unhygienic conditions on the slaving ships and poor diets meant that the average mortality rate during the Middle Passage was one in seven. At the end of the 16th century, England and the Dutch Empire began to challenge the Portuguese Empire 's monopoly of trade with Asia, forming private joint-stock companies to finance
16463-529: The business of establishing its own overseas colonies. The British Empire began to take shape during the early 17th century, with the English settlement of North America and the smaller islands of the Caribbean, and the establishment of joint-stock companies , most notably the East India Company , to administer colonies and overseas trade. This period, until the loss of the Thirteen Colonies after
16626-515: The coast of West Africa with the aim of establishing an Atlantic slave trade . This effort was rebuffed and later, as the Anglo-Spanish Wars intensified, Elizabeth I gave her blessing to further privateering raids against Spanish ports in the Americas and shipping that was returning across the Atlantic, laden with treasure from the New World . At the same time, influential writers such as Richard Hakluyt and John Dee (who
16789-470: The colony was abandoned two years later. The Darien scheme was a financial disaster for Scotland: a quarter of Scottish capital was lost in the enterprise. The episode had major political consequences, helping to persuade the government of the Kingdom of Scotland of the merits of turning the personal union with England into a political and economic one under the Kingdom of Great Britain established by
16952-457: The continent. During the 1880s and 1890s, Rhodes, with his privately owned British South Africa Company , occupied and annexed territories named after him, Rhodesia . The path to independence for the white colonies of the British Empire began with the 1839 Durham Report , which proposed unification and self-government for Upper and Lower Canada, as a solution to political unrest which had erupted in armed rebellions in 1837. This began with
17115-546: The dominions, joined the Commonwealth of Nations , a free association of independent states. Fifteen of these, including the United Kingdom, retain the same person as monarch , currently King Charles III . The foundations of the British Empire were laid when England and Scotland were separate kingdoms. In 1496, King Henry VII of England , following the successes of Spain and Portugal in overseas exploration, commissioned John Cabot to lead an expedition to discover
17278-670: The east, and the Americas to the west. As one component of the interconnected World Ocean , it is connected in the north to the Arctic Ocean , to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south. Other definitions describe the Atlantic as extending southward to Antarctica . The Atlantic Ocean is divided in two parts, the northern and southern Atlantic, by
17441-615: The east, the boundaries of the ocean proper are Europe: the Strait of Gibraltar (where it connects with the Mediterranean Sea – one of its marginal seas – and, in turn, the Black Sea , both of which also touch upon Asia) and Africa. In the southeast, the Atlantic merges into the Indian Ocean. The 20° East meridian , running south from Cape Agulhas to Antarctica defines its border. In
17604-544: The eastern and western North Atlantic central water since the western part is strongly affected by the Gulf Stream and therefore the upper layer is closer to underlying fresher subpolar intermediate water. The eastern water is saltier because of its proximity to Mediterranean water. North Atlantic central water flows into South Atlantic central water at 15°N . There are five intermediate waters: four low-salinity waters formed at subpolar latitudes and one high-salinity formed through evaporation. Arctic intermediate water flows from
17767-576: The exception of international relations . Australia and New Zealand achieved similar levels of self-government after 1900, with the Australian colonies federating in 1901 . The term "dominion status" was officially introduced at the 1907 Imperial Conference . As the dominions gained greater autonomy, they would come to be recognized as distinct realms of the empire with unique customs and symbols of their own. Imperial identity, through imagery such as patriotic artworks and banners, began developing into
17930-493: The first known humans to cross the Atlantic, it was the expedition of Christopher Columbus in 1492 that proved to be the most consequential. Columbus' expedition ushered in an age of exploration and colonization of the Americas by European powers , most notably Portugal , Spain , France , and the United Kingdom . From the 16th to 19th centuries, the Atlantic Ocean was the center of both an eponymous slave trade and
18093-632: The first permanent European settlement in British Columbia , Fort St. John . The North West Company sought further exploration and backed expeditions by David Thompson , starting in 1797, and later by Simon Fraser . These pushed into the wilderness territories of the Rocky Mountains and Interior Plateau to the Strait of Georgia on the Pacific Coast, expanding British North America westward. The East India Company fought
18256-578: The following months. William Hobson declared British sovereignty over all New Zealand on 21 May 1840, over the North Island by cession and over the South Islnd by discovery (the island was sparsely populated and deemed terra nullius ). Hobson became Lieutenant-Governor, subject to Governor Sir George Gipps in Sydney, with British possession of New Zealand initially administered from Australia as
18419-585: The following year, abolished slavery in the British Empire on 1 August 1834, finally bringing the empire into line with the law in the UK (with the exception of the territories administered by the East India Company and Ceylon, where slavery was ended in 1844). Under the Act, slaves were granted full emancipation after a period of four to six years of "apprenticeship". Facing further opposition from abolitionists,
18582-659: The global hegemon was later described as Pax Britannica (Latin for "British Peace"). Alongside the formal control that Britain exerted over its colonies, its dominance of much of world trade, and of its oceans, meant that it effectively controlled the economies of, and readily enforced its interests in, many regions , such as Asia and Latin America . It also came to dominate the Middle East . Increasing degrees of autonomy were granted to its white settler colonies , some of which were formally reclassified as Dominions by
18745-531: The globe, and in the process established large overseas empires. Envious of the great wealth these empires generated, England, France , and the Netherlands began to establish colonies and trade networks of their own in the Americas and Asia . A series of wars in the 17th and 18th centuries with the Netherlands and France left Britain the dominant colonial power in North America . Britain became
18908-559: The government as important for the economy. with destinations Belo Horizonte - Confins (CNF), Campinas (VCP), Salvador (SSA), São Paulo - Congonhas (CGH) and São Paulo - Guarulhos (GRU). Ilhéus is the hometown of Jorge Amado , the best known writer in Brazil. He wrote over 25 novels, which were translated into 48 languages and stayed on bestseller lists in 52 countries. His novels like Gabriela, Clove and Cinnamon and Dona Flor and Her Two Husbands portray life and customs in
19071-679: The government on the suitability of Botany Bay for the establishment of a penal settlement , and in 1787 the first shipment of convicts set sail, arriving in 1788. Unusually, Australia was claimed through proclamation. Indigenous Australians were considered too uncivilised to require treaties, and colonisation brought disease and violence that together with the deliberate dispossession of land and culture were devastating to these peoples. Britain continued to transport convicts to New South Wales until 1840, to Tasmania until 1853 and to Western Australia until 1868. The Australian colonies became profitable exporters of wool and gold, mainly because of
19234-500: The illegal trade in wild animals. The city was once one of the biggest exporters of cocoa beans . The city's economy is based mainly on tourism , as a result of its beaches and cultural heritage that includes early Portuguese buildings, history and culinary distinctions, which bring to the city many Brazilian and foreign tourists. There is a proposal for the construction of a new deep water port which due to impact has been opposed by environmental activists but has been accepted by
19397-500: The increasingly healthy profits of colonial trade remained in English hands, Parliament decreed in 1651 that only English ships would be able to ply their trade in English colonies. This led to hostilities with the United Dutch Provinces —a series of Anglo-Dutch Wars —which would eventually strengthen England's position in the Americas at the expense of the Dutch. In 1655, England annexed the island of Jamaica from
19560-559: The intention of asserting imperial authority and not allowing the sort of popular control of government that was perceived to have led to the American Revolution. Tensions between Britain and the United States escalated again during the Napoleonic Wars , as Britain tried to cut off American trade with France and boarded American ships to impress men into the Royal Navy . The United States Congress declared war,
19723-436: The larger trade, by 1720, in terms of sales, the British company had overtaken the Dutch. During the middle decades of the 18th century, there were several outbreaks of military conflict on the Indian subcontinent , as the English East India Company and its French counterpart , struggled alongside local rulers to fill the vacuum that had been left by the decline of the Mughal Empire . The Battle of Plassey in 1757, in which
19886-415: The late 16th and early 17th centuries. At its height in the 19th and early 20th centuries, it was the largest empire in history and, for a century, was the foremost global power. By 1913, the British Empire held sway over 412 million people, 23 percent of the world population at the time, and by 1920, it covered 35.5 million km (13.7 million sq mi), 24 per cent of
20049-454: The latter 2,000 km (1,200 mi). Ocean currents such as the Gulf Stream transport eel larvae from the Sargasso Sea to foraging areas in North America, Europe, and northern Africa. Recent but disputed research suggests that eels possibly use Earth's magnetic field to navigate through the ocean both as larvae and as adults. The climate is influenced by the temperatures of the surface waters and water currents as well as winds. Because of
20212-474: The limits of the oceans and seas in 1953, but some of these definitions have been revised since then and some are not recognized by various authorities, institutions, and countries, for example the CIA World Factbook . Correspondingly, the extent and number of oceans and seas vary. The Atlantic Ocean is bounded on the west by North and South America. It connects to the Arctic Ocean through the Denmark Strait , Greenland Sea , Norwegian Sea and Barents Sea . To
20375-455: The loss of the Thirteen Colonies in 1783, the British government looked for an alternative, eventually turning to Australia . On his first of three voyages commissioned by the government, James Cook reached New Zealand in October 1769. He was the first European to circumnavigate and map the country. From the late 18th century, the country was regularly visited by explorers and other sailors, missionaries , traders and adventurers but no attempt
20538-509: The lower Congo River region undermining orderly colonisation of tropical Africa, the Berlin Conference of 1884–85 was held to regulate the competition between the European powers in what was called the " Scramble for Africa " by defining "effective occupation" as the criterion for international recognition of territorial claims. The scramble continued into the 1890s, and caused Britain to reconsider its decision in 1885 to withdraw from Sudan . A joint force of British and Egyptian troops defeated
20701-429: The lowest values are in the high latitudes and along coasts where large rivers enter. Maximum salinity values occur at about 25° north and south , in subtropical regions with low rainfall and high evaporation. The high surface salinity in the Atlantic, on which the Atlantic thermohaline circulation is dependent, is maintained by two processes: the Agulhas Leakage/Rings , which brings salty Indian Ocean waters into
20864-454: The margins of the continents constitute about 11% of the bottom topography with few deep channels cut across the continental rise. The mean depth between 60°N and 60°S is 3,730 m (12,240 ft), or close to the average for the global ocean, with a modal depth between 4,000 and 5,000 m (13,000 and 16,000 ft). In the South Atlantic the Walvis Ridge and Rio Grande Rise form barriers to ocean currents. The Laurentian Abyss
21027-407: The maximum depth, the Milwaukee Deep in the Puerto Rico Trench , is 8,376 m (27,480 ft). Top large seas: The bathymetry of the Atlantic is dominated by a submarine mountain range called the Mid-Atlantic Ridge (MAR). It runs from 87°N or 300 km (190 mi) south of the North Pole to the subantarctic Bouvet Island at 54°S . Expeditions to explore the bathymertry of
21190-510: The most extensive and voluminous large igneous provinces in Earth's history associated with the Triassic–Jurassic extinction event , one of Earth's major extinction events . Theoliitic dikes , sills , and lava flows from the CAMP eruption at 200 Ma have been found in West Africa, eastern North America, and northern South America. The extent of the volcanism has been estimated to 4.5 × 10 km (1.7 × 10 sq mi) of which 2.5 × 10 km (9.7 × 10 sq mi) covered what
21353-433: The most successful colony in the Americas, and one of the most densely populated places in the world. This boom led to the spread of sugar cultivation across the Caribbean, financed the development of non-plantation colonies in North America, and accelerated the growth of the Atlantic slave trade , particularly the triangular trade of slaves, sugar and provisions between Africa, the West Indies and Europe. To ensure that
21516-502: The north to become the source for North Atlantic deep water, south of the Greenland-Scotland sill. These two intermediate waters have different salinity in the western and eastern basins. The wide range of salinities in the North Atlantic is caused by the asymmetry of the northern subtropical gyre and a large number of contributions from a wide range of sources: Labrador Sea, Norwegian-Greenland Sea, Mediterranean, and South Atlantic Intermediate Water. The North Atlantic deep water (NADW)
21679-428: The north. The first of several Church of England missionaries arrived in 1814 and as well as their missionary role, they soon become the only form of European authority in a land that was not subject to British jurisdiction: the closest authority being the New South Wales governor in Sydney. The sale of weapons to Māori resulted from 1818 on in the intertribal warfare of the Musket Wars , with devastating consequences for
21842-425: The ocean's great capacity to store and release heat, maritime climates are more moderate and have less extreme seasonal variations than inland climates. Precipitation can be approximated from coastal weather data and air temperature from water temperatures. The oceans are the major source of atmospheric moisture that is obtained through evaporation. Climatic zones vary with latitude; the warmest zones stretch across
22005-454: The other powers of Europe. In 1701, England, Portugal and the Netherlands sided with the Holy Roman Empire against Spain and France in the War of the Spanish Succession , which lasted for thirteen years. In 1695, the Parliament of Scotland granted a charter to the Company of Scotland , which established a settlement in 1698 on the Isthmus of Panama . Besieged by neighbouring Spanish colonists of New Granada , and affected by malaria ,
22168-495: The outbreak of the Anglo-Spanish War of Jenkins' Ear in 1739, Spanish privateers attacked British merchant shipping along the Triangle Trade routes. In 1746, the Spanish and British began peace talks, with the King of Spain agreeing to stop all attacks on British shipping; however, in the 1750 Treaty of Madrid Britain lost its slave-trading rights in Latin America . In the East Indies, British and Dutch merchants continued to compete in spices and textiles. With textiles becoming
22331-421: The outbreak of the First World War. Britain quickly invaded and occupied most of Germany's overseas colonies in Africa. In the Pacific, Australia and New Zealand occupied German New Guinea and German Samoa respectively. Plans for a post-war division of the Ottoman Empire, which had joined the war on Germany's side, were secretly drawn up by Britain and France under the 1916 Sykes–Picot Agreement . This agreement
22494-457: The outlines of the coasts of the Old and the New Worlds. The remainder of the ridge was discovered in the 1920s by the German Meteor expedition using echo-sounding equipment. The exploration of the MAR in the 1950s led to the general acceptance of seafloor spreading and plate tectonics . Most of the MAR runs under water but where it reaches the surfaces it has produced volcanic islands. While nine of these have collectively been nominated
22657-434: The passing of the Act of Union in 1840, which created the Province of Canada . Responsible government was first granted to Nova Scotia in 1848, and was soon extended to the other British North American colonies. With the passage of the British North America Act, 1867 by the British Parliament , the Province of Canada, New Brunswick and Nova Scotia were formed into Canada, a confederation enjoying full self-government with
22820-524: The pond" or "on the other side of the pond" or "across the pond", rather than to discuss the ocean itself. The term dates to 1640, first appearing in print in a pamphlet released during the reign of Charles I , and reproduced in 1869 in Nehemiah Wallington 's Historical Notices of Events Occurring Chiefly in The Reign of Charles I , where "great Pond" is used in reference to the Atlantic Ocean by Francis Windebank , Charles I's Secretary of State . The International Hydrographic Organization (IHO) defined
22983-448: The power vacuums that had been left by the declining Ottoman Empire , Qajar dynasty and Qing dynasty . This rivalry in Central Asia came to be known as the "Great Game". As far as Britain was concerned, defeats inflicted by Russia on Persia and Turkey demonstrated its imperial ambitions and capabilities and stoked fears in Britain of an overland invasion of India. In 1839, Britain moved to pre-empt this by invading Afghanistan , but
23146-405: The region in 1878 and on all outstanding matters in 1907 with the signing of the Anglo-Russian Entente . The destruction of the Imperial Russian Navy by the Imperial Japanese Navy at the Battle of Tsushima during the Russo-Japanese War of 1904–1905 limited its threat to the British. The Dutch East India Company had founded the Dutch Cape Colony on the southern tip of Africa in 1652 as
23309-563: The return journey to England and was succeeded by his half-brother, Walter Raleigh , who was granted his own patent by Elizabeth in 1584. Later that year, Raleigh founded the Roanoke Colony on the coast of present-day North Carolina , but lack of supplies caused the colony to fail. In 1603, James VI of Scotland ascended (as James I) to the English throne and in 1604 negotiated the Treaty of London , ending hostilities with Spain. Now at peace with its main rival, English attention shifted from preying on other nations' colonial infrastructures to
23472-450: The role of global policeman, a state of affairs later known as the Pax Britannica , and a foreign policy of " splendid isolation ". Alongside the formal control it exerted over its own colonies, Britain's dominant position in world trade meant that it effectively controlled the economies of many countries, such as China, Argentina and Siam , which has been described by some historians as an " Informal Empire ". British imperial strength
23635-438: The seafloor. The oldest oceanic crust in the Atlantic is up to 145 million years and is situated off the west coast of Africa and the east coast of North America, or on either side of the South Atlantic. In many places, the continental shelf and continental slope are covered in thick sedimentary layers. For instance, on the North American side of the ocean, large carbonate deposits formed in warm shallow waters such as Florida and
23798-423: The size of the territories under its control, either ruling directly or via local rulers under the threat of force from the Presidency Armies , the vast majority of which was composed of Indian sepoys , led by British officers. The British and French struggles in India became but one theatre of the global Seven Years' War (1756–1763) involving France, Britain, and the other major European powers. The signing of
23961-450: The sovereignty of the Crown over the territories that it had acquired. The company's eventual end was precipitated by the Indian Rebellion in 1857, a conflict that had begun with the mutiny of sepoys, Indian troops under British officers and discipline. The rebellion took six months to suppress, with heavy loss of life on both sides. The following year the British government dissolved the company and assumed direct control over India through
24124-419: The subcontinent in which it is estimated that over 15 million people died. The East India Company had failed to implement any coordinated policy to deal with the famines during its period of rule. Later, under direct British rule, commissions were set up after each famine to investigate the causes and implement new policies, which took until the early 1900s to have an effect. On each of his three voyages to
24287-413: The subtropics to the northeastern Atlantic. There this water is cooled during winter and forms return currents that merge along the eastern continental slope of Greenland where they form an intense (40–50 Sv ) current which flows around the continental margins of the Labrador Sea . A third of this water becomes part of the deep portion of the North Atlantic Deep Water (NADW). The NADW, in turn, feeds
24450-421: The surface is usually covered with sea ice in the Labrador Sea , Denmark Strait , and Baltic Sea. The Coriolis effect circulates North Atlantic water in a clockwise direction, whereas South Atlantic water circulates counter-clockwise. The south tides in the Atlantic Ocean are semi-diurnal; that is, two high tides occur every 24 lunar hours. In latitudes above 40° North some east–west oscillation, known as
24613-428: The total volume of the Earth's oceans. Excluding its marginal seas, the Atlantic covers 81,760,000 km (31,570,000 sq mi) and has a volume of 305,811,900 km (73,368,200 cu mi). The North Atlantic covers 41,490,000 km (16,020,000 sq mi) (11.5%) and the South Atlantic 40,270,000 km (15,550,000 sq mi) (11.1%). The average depth is 3,646 m (11,962 ft) and
24776-453: The upper layers of the circumpolar region, near the Drake Passage and the Falkland Islands. Both these currents receive some contribution from the Indian Ocean. On the African east coast, the small cyclonic Angola Gyre lies embedded in the large subtropical gyre. The southern subtropical gyre is partly masked by a wind-induced Ekman layer . The residence time of the gyre is 4.4–8.5 years. North Atlantic Deep Water flows southward below
24939-440: The voyages—the English, later British, East India Company and the Dutch East India Company , chartered in 1600 and 1602 respectively. The primary aim of these companies was to tap into the lucrative spice trade , an effort focused mainly on two regions: the East Indies archipelago , and an important hub in the trade network, India. There, they competed for trade supremacy with Portugal and with each other. Although England eclipsed
25102-424: The western Atlantic and South Sandwich Trench (8,264 m or 27,113 ft) in the South Atlantic. There are numerous submarine canyons off northeastern North America, western Europe, and northwestern Africa. Some of these canyons extend along the continental rises and farther into the abyssal plains as deep-sea channels. In 1922, a historic moment in cartography and oceanography occurred. The USS Stewart used
25265-405: Was a humiliation for Spain, which practically renounced all sovereignty on the North Pacific coast. This opened the way to British expansion in the area, and a number of expeditions took place; firstly a naval expedition led by George Vancouver which explored the inlets around the Pacific North West, particularly around Vancouver Island . On land, expeditions sought to discover a river route to
25428-424: Was applied to the southern Atlantic as late as the mid-19th century. During the Age of Discovery , the Atlantic was also known to English cartographers as the Great Western Ocean . The pond is a term often used by British and American speakers in reference to the northern Atlantic Ocean, as a form of meiosis , or ironic understatement. It is used mostly when referring to events or circumstances "on this side of
25591-481: Was founded as a haven by Puritan religious separatists, later known as the Pilgrims . Fleeing from religious persecution would become the motive for many English would-be colonists to risk the arduous trans-Atlantic voyage : Maryland was established by English Roman Catholics (1634), Rhode Island (1636) as a colony tolerant of all religions and Connecticut (1639) for Congregationalists . England's North American holdings were further expanded by
25754-404: Was made to settle the country or establish possession. The coast of Australia had been discovered for Europeans by the Dutch in 1606 , but there was no attempt to colonise it. In 1770, after leaving New Zealand, James Cook charted the eastern coast, claimed the continent for Britain, and named it New South Wales . In 1778, Joseph Banks , Cook's botanist on the voyage, presented evidence to
25917-429: Was not divulged to the Sharif of Mecca , who the British had been encouraging to launch an Arab revolt against their Ottoman rulers, giving the impression that Britain was supporting the creation of an independent Arab state. The British declaration of war on Germany and its allies committed the colonies and Dominions, which provided invaluable military, financial and material support. Over 2.5 million men served in
26080-427: Was supported by the British prime minister , William Gladstone , who hoped that Ireland might follow in Canada's footsteps as a Dominion within the empire, but his 1886 Home Rule bill was defeated in Parliament. Although the bill, if passed, would have granted Ireland less autonomy within the UK than the Canadian provinces had within their own federation, many MPs feared that a partially independent Ireland might pose
26243-585: Was the first to use the term "British Empire") were beginning to press for the establishment of England's own empire. By this time, Spain had become the dominant power in the Americas and was exploring the Pacific Ocean, Portugal had established trading posts and forts from the coasts of Africa and Brazil to China , and France had begun to settle the Saint Lawrence River area, later to become New France . Although England tended to trail behind Portugal, Spain, and France in establishing overseas colonies, it carried out its first modern colonisation, referred to as
26406-481: Was the only global war fought between Britain and another imperial power during the Pax Britannica and was a resounding defeat for Russia. The situation remained unresolved in Central Asia for two more decades, with Britain annexing Baluchistan in 1876 and Russia annexing Kirghizia , Kazakhstan , and Turkmenistan . For a while, it appeared that another war would be inevitable, but the two countries reached an agreement on their respective spheres of influence in
26569-401: Was underpinned by the steamship and the telegraph , new technologies invented in the second half of the 19th century, allowing it to control and defend the empire. By 1902, the British Empire was linked together by a network of telegraph cables, called the All Red Line . The East India Company drove the expansion of the British Empire in Asia. The company's army had first joined forces with
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