Era
20th century
48
21st century
42
21th century
24
19th century
8
1914-1940
4
1843-1920
3
Civil War, 1936-1939
3
16th century
2
1864-1936
2
1939-1975
2
21ts century
2
Classical period, 1500-1700
2
Napoleonic Conquest, 1808-1813
2
Siglo XIX
2
Siglo XX
2
1451-1504
1
1482-1552
1
1485-1547
1
1547-1616
1
1573-1610
1
1580-1645
1
1651-1715
1
1697-1763
1
1788-1860
1
17th century
1
1818-1883
1
1819-1874
1
1833-190
1
1843-1916
1
1852-1926
1
1856-1939
1
1860-1933
1
1861-1922
1
1862-1937
1
1864-1916
1
1873-1967
1
1873-1972
1
1885-1972
1
1888-1959
1
1898-
1
1902-1968
1
1908-1932
1
1910-1946
1
1914-1978
1
1935-
1
1952-
1
1954-
1
1959-
1
1959-1990
1
1960-1999
1
more ...