Period 6

Events

july 28 1914 - november 11 1918
1917 - 1918
1923
1928 - 1932
1930
1931 - 1932
1933
1938
1939 - 1945
1945
August 15, 1947
1948 - 1994
1948
1949
1950 - 1953
1955 - 1975
1959
1961 - 1989