1773 James Cook crosses the Antarctic circle and circumnavigates Antarctica
1819 - 21 Captain Thaddeus Bellingshausen made the first sighting of the continent
1840 James Clark Ross takes two ships, the Erebus and the Terror, to within 80 miles of the coast
1902 Captain Scott leads his first Antarctic expedition to try to reach the South Pole
1909 Douglas Mawson reaches the South Magnetic Pole
1911 Roald Amundsen leads a five man expedition that reaches the South Pole for the first time
1912 Captain Scott reaches the South Pole to discover he has been beaten by Amundsen
1923 large-scale factory ship whaling in the Ross Sea
1929 Byrd and three others become the first to fly over the South Pole
1957 - 1958 International Geophysical Year (IGY) 12 nations establish over 60 stations. Antarctica becomes "non-national"
1961 Antarctic treaty comes into effect
2007 - 2009 International Polar Year
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