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Captain James cook crosses the Antarctic circle and does not see land he sees icebergs which proves the sourth land exsists
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James Weddell a whaler has a sea named after him and reaches the most southernly point (at that time).
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Mwason reaches the south pole.
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Finally Robert makes it to the south pole but getting beaten by Amundsen by 33 days.
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Ernist returns to Antarctica to complete his goal of crossing the contient. There ship gets crushed by the ice.
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He was the first person to fly over Antarctica.
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The treaty was assigned by the 12 countries who had been active during the Geophysical year.
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The treaty was put to affect with lots of rules for all the countries to follow.