The history of Antarctica emerges from early Western theories of a vast continent, known as Terra Australis, believed to exist in the far south of the globe. The term Antarctic, referring to the opposite of the Arctic Circle, was coined by Marinus of Tyre in the 2nd century AD.
The rounding of the Cape of Good Hope and Cape Horn in the 15th and 16th centuries proved that Terra Australis Incognita ("Unknown Southern Land"), if it existed, was a continent in its own right. In 1773, James Cook and his crew crossed the Antarctic Circle for the first time. Although he discovered new islands, he did not sight the continent itself. It is believed that he came as close as 240 km (150 mi) from the mainland.
Exploration of the region began after William Smith accidentally discovered the South Shetland Islands on 19 February 1819. The following summer, at the turn of 1819 and 1820, the far south was visited by several ships, mainly sealers, but also by Edward Bransfield, a representative of the British Empire, and the First Russian Antarctic Expedition, which is credited with the earliest, albeit unconscious, sighting of the continent. The search for new seal colonies led to the discovery of several more areas of land, but it was only the data collected by three national expeditions led by Charles Wilkes, Jules Dumont d'Urville and James Clark Ross in 1840 that confirmed the existence of the continent. In the twenty years following Ross' return, there was a general lull internationally in Antarctic exploration.
The exploration of Antarctica was resumed in the 1870s, and subsequent expeditions gradually moved from being commercial-scientific to being characteristic of the heroic age. The culmination of this era is considered to be the race to the South Pole achieved by Roald Amundsen and Robert Falcon Scott, which ended with Amundsen's conquest of the pole on 14 December 1911 and the death of Scott's group on the way back. The Shackleton-Rowett expedition, which ended in 1922, is considered the last expedition of the Heroic Age, after which exploration became increasingly technology-based. In the 1950s, the most famous permanent bases were built, such as Mawson, McMurdo, Amundsen-Scott and Mirny.
The International Geophysical Year was pivotal in establishing a cooperative international framework in Antarctica, and led on to the Antarctic Treaty System in 1959.
Early exploration
The search for Terra Australis Incognita
Aristotle speculated, "Now since there must be a region bearing the same relation to the southern pole as the place we live in bears to our pole...".
It was not until Prince Henry the Navigator began in 1418 to encourage the penetration of the torrid zone in the effort to reach India by circumnavigating Africa that European exploration of the southern hemisphere began. In 1473, Portuguese navigator Lopes Gonçalves proved that the equator could be crossed, and cartographers and sailors began to assume the existence of another, temperate continent to the south of the known world.
The doubling of the Cape of Good Hope in 1487 by Bartolomeu Dias first brought explorers within touch of the Antarctic cold, and proved that there was an ocean separating Africa from any Antarctic land that might exist.
Ferdinand Magellan, who passed through the Straits of Magellan in 1520, assumed that the islands of Tierra del Fuego to the south were an extension of this unknown southern land, and it appeared as such on a map by Ortelius: Terra australis recenter inventa sed nondum plene cognita ("Southern land recently discovered but not yet fully known").
In 1539, the King of Spain, Charles V, created the Governorate of Terra Australis granted to Pedro Sancho de la Hoz, who in 1540 transferred the title to the conqueror Pedro de Valdivia and later was incorporated to Chile.
European geographers connected the coast of Tierra del Fuego with the coast of New Guinea on their globes, and allowing their imaginations to run riot in the vast unknown spaces of the south Atlantic, south Indian Ocean and Pacific Ocean, they sketched the outlines of the Terra Australis Incognita ("Unknown Southern Land"), a vast continent stretching in parts into the tropics. The search for this great south land or Third World was a leading motive of explorers in the 16th and the early part of the 17th centuries.
In 1599, according to the account of Jacob Le Maire, the blown off course Dutch Dirck Gerritsz Pomp observed mountainous land at latitude (64°). If so, these were the South Shetland Islands, and possibly the first European sighting of Antarctica (or offshore-lying islands belonging to it). Other accounts, however, do not note this observation, casting doubt on their accuracy. A similar incident happened to the Spaniard Gabriel de Castilla claimed to have sighted "snow-covered mountains" beyond the 64° S in 1603. Both of these potential discoveries had no consequences. Before the construction of the Panama Canal, the passages around Tierra del Fuego, notorious for their harsh weather, served as the primary route between the Atlantic and Pacific Oceans. Many ships navigating this route reported drifting off course beyond the 60th parallel, yet no land was ever sighted.
Quirós, in 1606, took possession for the king of Spain all of the lands he had discovered in Australia del Espiritu Santo (the New Hebrides) and those he would discover "even to the Pole".
Francis Drake, like Spanish explorers before him, had speculated that there might be an open channel south of Tierra del Fuego. Indeed, when Schouten and Le Maire discovered the southern extremity of Tierra del Fuego and named it Cape Horn in 1615, they proved that the Tierra del Fuego archipelago was of small extent and not connected to the southern land.
Finally, in 1642, Tasman showed that even New Holland was separated by sea from any continuous southern continent. Voyagers round the Horn frequently met with contrary winds and were driven southward into snowy skies and ice-encumbered seas; but, so far as can be ascertained, none of them before 1770 reached the Antarctic Circle, or knew it, if they did.
The Dutch expedition to Valdivia of 1643 intended to round Cape Horn sailing through Le Maire Strait but strong winds made it instead drift south and east. Northerly winds pushed the expedition as far south as 61°59 S where icebergs were abundant before a southerly wind that begun on April 7 allowed the fleet to advance west. The small fleet led by Hendrik Brouwer managed to enter the Pacific Ocean sailing south of Isla de los Estados disproving earlier beliefs that it was part of Terra Australis.
South of the Antarctic Convergence The visit to South Georgia by the English merchant Anthony de la Roché in 1675 was the first ever discovery of land south of the Antarctic Convergence.Dalrymple, Alexander. (1771). A Collection of Voyages Made to the Ocean Between Cape Horn and Cape of Good Hope. Two volumes. London.Headland, Robert K. (1984). The Island of South Georgia, Cambridge University Press. Soon after the voyage cartographers started to depict 'Roché Island', honouring the discoverer.
James Cook was aware of La Roché's discovery when surveying and mapping the island in 1775.Cook, James. (1777). A Voyage Towards the South Pole, and Round the World. Performed in His Majesty's Ships the Resolution and Adventure, In the Years 1772, 1773, 1774, and 1775. In which is included, Captain Furneaux's Narrative of his Proceedings in the Adventure during the Separation of the Ships . Volume II. London: Printed for W. Strahan and T. Cadell. (Relevant fragment)
Edmond Halley's voyage in HMS Paramour for magnetic investigations in the South Atlantic met the pack ice in 52° S in January 1700, but that latitude (he reached off the north coast of South Georgia) was his farthest south. A determined effort on the part of the French naval officer Jean-Baptiste Charles Bouvet de Lozier to discover the "South Land" – described by a half legendary "sieur de Gonneyville" – resulted in the discovery of Bouvet Island in 54°10′ S, and in the navigation of 48° of longitude of ice-cumbered sea nearly in 55° S in 1739.
In 1771, Yves Joseph Kerguelen sailed from France with instructions to proceed south from Mauritius in search of "a very large continent." He lighted upon a land in 50° S which he called South France, and believed to be the central mass of the southern continent. He was sent out again to complete the exploration of the new land, and found it to be only an inhospitable island which he renamed the Isle of Desolation, but which was ultimately named after him.
The Antarctic Circle
The obsession of the undiscovered continent culminated in the brain of Alexander Dalrymple, the brilliant and erratic hydrographer who was nominated by the Royal Society to command the Transit of Venus expedition to Tahiti in 1769. The command of the expedition was given by the admiralty to Captain James Cook. Sailing in 1772 with the Resolution, a vessel of 462 tons under his own command and the Adventure of 336 tons under Captain Tobias Furneaux, Cook first searched in vain for Bouvet Island, then sailed for 20 degrees of longitude to the westward in latitude 58° S, and then 30° eastward for the most part south of 60° S, a higher southern latitude than had ever been voluntarily entered before by any vessel. On 17 January 1773 the Antarctic Circle was crossed for the first time in history and the two ships reached by , where their course was stopped by ice.
Cook then turned northward to look for French Southern and Antarctic Lands, of the discovery of which he had received news at Cape Town, but from the rough determination of his longitude by Kerguelen, Cook reached the assigned latitude 10° too far east and did not see it. He turned south again and was stopped by ice in by 95° E and continued eastward nearly on the parallel of 60° S to 147° E. On 16 March, the approaching winter drove him northward for rest to New Zealand and the tropical islands of the Pacific. In November 1773, Cook left New Zealand, having parted company with the Adventure, and reached 60° S by 177° W, whence he sailed eastward keeping as far south as the floating ice allowed. The Antarctic Circle was crossed on 20 December and Cook remained south of it for three days, being compelled after reaching to stand north again in 135° W.
A long detour to served to show that there was no land connection between New Zealand and Tierra del Fuego. Turning south again, Cook crossed the Antarctic Circle for the third time at before his progress was once again blocked by ice four days later at by . This point, reached on 30 January 1774, was the farthest south attained in the 18th century. With a great detour to the east, almost to the coast of South America, the expedition regained Tahiti for refreshment. In November 1774, Cook started from New Zealand and crossed the South Pacific without sighting land between 53° and 57° S to Tierra del Fuego; then, passing Cape Horn on 29 December, he rediscovered Roché Island renaming it Isle of Georgia, and discovered the South Sandwich Islands (named Sandwich Land by him), the only ice-clad land he had seen, before crossing the South Atlantic to the Cape of Good Hope between 55° and 60°. He thereby laid open the way for future Antarctic exploration by exploding the myth of a habitable southern continent. Cook's most southerly discovery of land lay on the temperate side of the 60th parallel, and he convinced himself that if land lay farther south it was practically inaccessible and of no economic value.
Discovery of the South Shetland Islands (1819)