Period 6

Period 6

1900 CE - Present

The World

1914 - 1918
1919 - 1946
1919
1929 - 1939
1939 - 1945
1945
1947 - 1991
1994
1995
2008
2011

U.S.

1941
1945
2001

Japan

1937 - 1938

China

1921
1934 - 1935
1949
1958 - 1961
1966 - 1976

USSR

1917
1929 - 1953
1991

Germany

1919
1933
1939

Europe

1922
1939
1948 - 1952
1989