Era
20th century
85
1900-1999
48
1964-1985
30
21st century
20
19th century
17
2000-2099
17
1900 - 1999
16
1939-1945
15
1800-1899
14
1948-
10
1945-
9
1985-
8
1928-1967
6
1954-1964
6
2233-2371
6
Since 1985
6
1564-1616
5
17th century
5
1902-1987
5
1936-
5
Civil War, 1861-1865
5
Siglo XX
5
1600-1699
4
1839-1908
4
1908-
4
1912-2001
4
1926-
4
1947-
4
1966-
4
1971-
4
1975-
4
1983-
4
2000 - 2099
4
2003-
4
Independence and Civil War, 1975-1994
4
Since 1900
4
1730?-1814
3
1746-1792
3
1775-1817
3
1861-1865
3
1873-1954
3
1912-1994
3
1914-1918
3
1921-
3
1930-1945
3
1932-1988
3
1937-1987
3
1939 - 1945
3
1939-
3
1945-1964
3
more ...