From Wikipedia, the free encyclopedia

Terra Australis is the large continent on the bottom of this 1570 map.

Terre Australle, 1583.

Terra Australis occupies a large part of the southern hemisphere. 1587.

The available territory for a southern continent had diminished greatly in this 1657 map by Jan Janssonius. Terra Australis Incognita ("unknown southern land") is printed across a region including the south pole without any definite shorelines.

Terra Australis (Latin, "land of the south") was a hypothetical continent appearing on European maps from the 15th to the 18th century. Other names for the continent include:

• Terra Australis Incognita, "the unknown land of the South".
• Magallanica or Magellanica, "the land of Magellan".

[edit] Origins

The notion of Terra Australis was introduced by Aristotle. His ideas were later expanded by Ptolemy (1st century AD), who believed that the Indian Ocean was enclosed on the south by land, and that the lands of the Northern Hemisphere should be balanced by land in the south.^{[citation needed]} Ptolemy's maps, which became well-known in Europe during the Renaissance, did not actually depict such a continent, but they did show an Africa which had no southern oceanic boundary (and which therefore might extend all the way to the South Pole), and also raised the possibility that the Indian Ocean was entirely enclosed by land.

[edit] Mapping the Southern Continent

Explorers of the Age of Discovery, from the late 15th century on, proved that Africa was almost entirely surrounded by sea, and that the Indian Ocean was accessible from both west and east. These discoveries reduced the area where the continent could be found; however, many cartographers held to Aristotle's opinion. Scientists argued for its existence, with such arguments as that there should be a large landmass in the south as a counterweight to the known landmasses in the Northern Hemisphere. As new lands were discovered, they were often assumed to be parts of the hypothetical continent.

Terra Australis was depicted on the mid-16th-century Dieppe maps, where its coastline appeared just south of the islands of the East Indies; it was often elaborately charted, with a wealth of fictitious detail. There was much interest in Terra Australis among Norman and Breton merchants at that time. In 1566 and 1570, Francisque and André d'Albaigne presented Gaspard de Coligny, Admiral of France, with projects for establishing relations with the Austral lands. Although The Admiral gave favourable consideration to these initiatives, they came to nought when Coligny was killed in 1572 during the St. Bartholomew's Day massacre.^[1]

Juan Fernandez, sailing from Chile in 1576, claimed he had discovered the Southern Continent.^[2] In the 1760s, Alexander Dalrymple accepted this claim and prompted the British government in 1769 to order James Cook in HM Bark Endeavour to seek out the Southern Continent to the South and West of Tahiti.^[3]

Isaac and Jacob Le Maire established the Australische Compagnie (Australian Company) in 1615 to trade with Terra Australis, which they referred to as "Australia". ^[4]

The cartographic depictions of the southern continent in the 16th and early 17th centuries, as might be expected for a concept based on such abundant conjecture and minimal data, varied wildly from map to map; in general, the continent shrank as potential locations were reinterpreted. At its largest, the continent included Tierra del Fuego, separated from South America by a small strait; New Guinea; and what would come to be called Australia. In Ortelius's atlas Theatrum Orbis Terrarum, published in 1570, Terra Australis extends north of the Tropic of Capricorn in the Pacific Ocean.

As long as it appeared on maps at all, the continent minimally included the unexplored lands around the South Pole, but generally much larger than the real Antarctica, spreading far north – in particular in the Pacific Ocean. New Zealand, first seen by the Dutch explorer (Abel Tasman) in 1642, was regarded by some as a part of the continent.

[edit] Dispelling the myth

Over the centuries the idea of Terra Australis gradually lost its hold. In 1615, Jacob le Maire en Willem Schouten's rounding of Cape Horn proved that Tierra del Fuego was a relatively small island, while in 1642 Abel Tasman's circumnavigation of New Holland proved that Australia was not part of the mythical southern continent. Much later, James Cook sailed around most of New Zealand in 1770, showing that even it could not be part of a large continent. On his second voyage he circumnavigated the globe at a very high southern latitude, at some places even crossing the south polar circle, showing that any possible southern continent must lie well within the cold polar areas. There could be no extension into regions with a temperate climate, as had been thought before.

In 1801, Matthew Flinders took command of an expedition to investigate the coastline of Australia, which he circled anti-clockwise, threading the Great Barrier Reef through what is now called Flinders Passage and surveying the Gulf of Carpentaria in the north. His charts of the coastline were remarkably accurate. After completing his work in 1803, he sailed for England. His ship was wrecked on an uncharted reef, however, and he returned to Australia in the ship's cutter, a remarkable 1,100 km (700 mile) journey.^[5]

Lands noted by Marco Polo in the 13th century had been subsumed under Terra Australis. Polo had proclaimed amazing riches in the kingdom of Lokak: "Gold is so plentiful that no one who did see it could believe it." Lokak was probably Thailand or Malaysia but the Europeans found very little gold in those lands and so the realm was pushed further south.

[edit] See also

• Ancient world maps
• Terra pericolosa
• History of cartography
• List of cartographers
• Lost continent

[edit] References

[edit] External links

• Terra Australis – The State Library of NSW
• The Oronce Fine map and the Terra Australis Incognita