Era
1914-1945
11
1902-1975
6
1918-1945
6
1938-
5
1883-1945
4
1813-1901
3
1900-1999
3
20th century
3
1182-1226
2
1282
2
1389-1464
2
1404-1472
2
1452-1519
2
1922-1945
2
1939-1945
2
1945-
2
1945-1976
2
1976-
2
1992-
2
19th century
2
Grand Council, 1943
2
To 146 B.C
2
-1947
1
1254-1323?
1
1573-1610
1
1596-1650
1
17th century
1
1800-1899
1
1807-1882
1
1815-1870
1
1828-1910
1
1845-1886
1
1858-1924
1
1867-1936
1
1877-1962
1
1880-1932
1
1889-1963
1
1892-1957
1
1892-1975
1
1894-1973
1
1898-1963
1
1903-1944
1
1927-2020
1
1932-1986
1
1994-2018
1
742-814
1
Civil War, 1936-1939
1
Since 1945
1
Spanish rule, 1535-1714
1