when did it break from gondwana?
UNANSWERABLE
what parts of south america are part of antarctica South America and Australia were not part of the fabled "Antarctica". when was it explored the first time? 17 January 1773.
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Antarctica [SEP] History of exploration
Antarctica has no indigenous population. In February 1775, during his second voyage, Captain Cook called the existence of such a polar continent "probable" and in another copy of his journal he wrote: "[I] firmly believe it and it's more than probable that we have seen a part of it". However, belief in the existence of a "Terra Australis"—a vast continent in the far south of the globe to "balance" the northern lands of Europe, Asia and North Africa—had prevailed since the times of Ptolemy in the 1st century AD. Even in the late 17th century, after explorers had found that South America and Australia were not part of the fabled "Antarctica", geographers believed that the continent was much larger than its actual size.