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  The ancient Greeks were the first people to come up with the idea of Antarctica
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  in January 1773, Captain James cook crosses the Antarctic circle.
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  A Russian naval officer circumnavigates Antarctica, Captain Thaddeus
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  On the 7th of February, the 1st known landing on continental Antarctica by American sealer Captain John Davis
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  He reaches the most southerly point at the time. No one else managed to penetrate Weddell sea again for 80 years.
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  In January 1909 Australian Douglas Mawson reaches the South Magnetic Pole.
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  Australian Sir Hubert Wilkins and American Carl Benjamin Eielson are the first people to fly over Antarctica.
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  Where researchers get the opportunity to work in both polar regions.