Era
20th century
17
21st century
10
19th century
4
18th century
2
1939-
2
1939-1975
2
1959-
2
1960-
2
1970-
2
1974-
2
2000-
2
-972?
1
1917-1936
1
1936-1975
1
1955-1983
1
1963-
1
1964-
1
1973-1988
1
1976-
1
1993-
1
21th century
1
41-
1
Civil War, 1876-1877
1
Civil War, 1936-1939
1
SXXI
1
Siglo XIX
1
Siglo XX
1