Era
20th century
72
1900-1999
39
1939-1945
35
19th century
23
1564-1616
12
1800-1899
10
1939 - 1945
10
1945-
10
1900 - 1999
9
1943-
9
21st century
9
18th century
8
2007
8
1800 - 1899
7
2001-2009
7
1775-1817
6
1930-
6
1939-1975
6
1946-
6
2001-
6
1812-1870
5
1957-
5
1969-
5
1977-
5
Civil War, 1861-1865
5
German occupation, 1940-1945
5
1700-1799
4
1856-1943
4
1928-2016
4
1935-
4
1947-
4
1954-
4
1961-
4
1964-
4
1967-
4
1971-
4
2000-2099
4
2001-2010
4
20e siècle
4
Revolution, 1979
4
Soviet occupation, 1979-1989
4
-1977
3
1491-1547
3
1507-1536
3
1789-1793
3
17th century
3
1821-1881
3
1847-1882
3
1866-1946
3
1879-1970
3
more ...