Era
1939-1945
3
20th century
3
1930-2009
2
1961-1975
2
Vietnam War, 1961-1975
2
(1917-1982)
1
1700-1799
1
1811-1863
1
1866-1946
1
18th century
1
1900 - 1999
1
1905-1987
1
1914-1918
1
1914-1996
1
1917-1963
1
1921-
1
1921-1992
1
1933-2005
1
1939 - 1945
1
1943-2017
1
1947-
1
1961 - 1975
1
1961-1970
1
1962-
1
1971-
1
19th century
1
Coup d'etat, 1964
1
World War, 1939-1945
1