Era
20th century
64
19th century
11
21st century
8
1953-1985
4
1945-1989
3
Civil War, 1861-1865
3
Korean War, 1950-1953
3
World War, 1939-1945
3
1880-1959
2
1930-2004
2
1933-1945
2
1945-1955
2
Intervention, 1968
2
Persian Gulf War, 1991
2
Vietnam War, 1961-1975
2
-1521
1
-1529
1
-1880
1
-480 B.C.
1
15th century
1
1689-1801
1
16th century
1
1775-1865
1
1789-1900
1
17th century
1
1821-1894
1
1821-1912
1
1823-1887
1
1863-1877
1
1871-1922
1
1878-1974
1
1881-1971
1
1882-1966
1
1883-1944
1
1890-1969
1
18th century
1
1902-
1
1906-1989
1
1907-1998
1
1908-1973
1
1919-1992
1
1925-1995
1
1945-
1
1945-1990
1
1946-
1
1952-
1
1963-1969
1
1963-1978
1
1964-1979
1
1978-2002
1
more ...