Era
19th century
130
20th century
66
1800-1899
22
1900-1999
21
1939-1945
21
18th century
16
21st century
11
Civil War, 1861-1865
10
1859-1916
9
1564-1616
7
1900 - 1999
7
1931-
7
1933-1945
7
Revolution, 1789-1799
7
1775-1817
6
1942-2011
6
16th century
5
1706-1739
5
1802-1885
5
1949-
5
Republic, 1912-1949
5
Siglo XIX
5
1700-1799
4
1800 - 1899
4
1801-1917
4
1896-1948
4
1914-1918
4
1918-1972
4
1939 - 1945
4
1945-
4
1969-
4
20e siècle
4
Japanese occupation, 1910-1945
4
Revolution, 1775-1783
4
1643-1670
3
1715-1774
3
17th century
3
1809-1865
3
1819-1898
3
1821-1881
3
1855-1910
3
1868-1930
3
1892-1973
3
1905-1976
3
1918-1945
3
1929
3
1939-
3
1944-
3
1945-1955
3
1961-
3
more ...