Astrid Coast 1931 – Hjalmar Riiser-Larsen – flew over Antarctica, discovered Kronprins Olav Kyst 1933–1935 – Richard Evelyn Byrd – Second expedition 1933–1939 – Lincoln Ellsworth – Aircraft expedition 1934–1937 – British Graham Land Expedition (BGLE) – led by John Riddoch Rymill 1936 – Lars Christensen – dropped Norwegian flag over Prince Harald Coast 1938 – German Antarctic Expedition (1938–1939), (New Swabia claimed for Nazi Germany) – led by Capt. Alfred Ritscher 1939–1941 – United States Antarctic Service Expedition – led by Richard Evelyn Byrd (Byrd's third expedition) 1943–1945 – Operation Tabarin – led by Lieutenant James Marr 1946–1947 – Operation Highjump – led by Richard Evelyn Byrd (Byrd's fourth expedition) 1947 – First Chilean Antarctic Expedition 1947–1948 – Operation Windmill – led by Commander Gerald Ketchum 1947–1948 – Ronne Antarctic Research Expedition – led by Finn Ronne 1949–1950 – Adelie-Land, Ship Commandant Charcot – led by Michel Barre 1949–1952 – Norwegian-British-Swedish Antarctic Expedition – led by John Giaever 1954 – Mawson Station established 1955–1956 – Operation Deep Freeze – led by Richard Evelyn Byrd (Byrd's fifth expedition) 1955–1957 – Falkland Island Dependency Aerial Survey led by P G Mott 1955–1957 – 1st Soviet Antarctic Expedition – led by Mikhail Somov 1956 – Amundsen–Scott South Pole Station established 1956–1958 – Commonwealth Trans-Antarctic Expedition – led by Vivian Fuchs 1956–1958 – 2nd Soviet Antarctic Expedition – led by Aleksei Treshnikov 1957–1958 – International Geophysical Year 1957–1958 – New Zealand Geological Survey Antarctic Expedition 1957 – Scott Base established 1957–1958 – Luncke Expedition 1957–1959 – 3rd Soviet Antarctic Expedition – led by Yevgeny Tolstikov 1958–1959 – New Zealand Geological Survey Antarctic Expedition 1958–1960 – 4th Soviet Antarctic Expedition – led by Aleksandr Dralkin 1959–1961 – 5th Soviet Antarctic Expedition – led by Yevgeny Korotkevich 1960 – South African National Antarctic Expedition 1960–1962 – 6th Soviet Antarctic Expedition – led by V. Driatsky 1961–1963 – 7th Soviet Antarctic Expedition – led by Aleksandr Dralkin 1962–1962 – Vostok traverse – led by Australian National Antarctic Research Expeditions (ANARE) 1962–1963 – New Zealand Federated Mountain Clubs Antarctic Expedition – Led by John M. Millen 1962–1964 – 8th Soviet Antarctic Expedition – led by Mikhail Somov 1963–1965 – 9th Soviet Antarctic Expedition – led by Mikhail Somov and Pavel Senko 1964–1965 – South Pole—Queen Maud Land Traverse I 1964–1966 – 10th Soviet Antarctic Expedition – led by M. Ostrekin, I. Petrov 1965–1966 – South Pole—Queen Maud