History of Space Part 3

America

1955
March 1, 1956
1957 - 1959
1958
1958
1959
1959
1959
1960
1961
1961 - 1963
May 5, 1961
February 20, 1962
1963
March 1965
June 1965
June 3, 1965

USSR/Russia

1957 - 1961
1957
1960
April 12, 1961
October 12, 1964
March 1965