Era
1901-1978
2
20th century
2
21st century
2
1830-1948
1
1851-1922
1
1858-1942
1
1872-1956
1
1893-1953
1
18th century
1
1906-1991
1
1940-
1
1942-
1
1944-
1
1945-
1
1957-
1
1961-
1
1962-
1
1965-1980
1
1979-
1
1985-1991
1
19th century
1
Civil War, 1979-1992
1
Conquest, 1519-1540
1
Partition, 1995
1
To 1500
1
To 1791
1
Unification, 1990
1