Era
20th century
11
1900-1999
7
20e siècle
4
1929-1968
2
1933-1945
2
1939-1945
2
19th century
2
21e siècle
2
10th century
1
1455-1485
1
1743-1803
1
1760-1899
1
1800-1899
1
1843-1915
1
1861-1865 (Guerre de Sécession)
1
1861-1865, Civil War
1
1898-1951
1
1918-1945
1
1925-1953
1
1925-1965
1
1950-
1
2000-2099
1
2010
1
2011
1
2013
1
2015
1
2016
1
2019
1
2020
1
2021
1
21st century
1
900-999
1
Civil War, 1861-1865
1
George III, 1760-1820
1
Occupation, 1939-1945
1
Revolution, 1791-1804
1
Soviet occupation, 1940-1941
1
To 1964
1
Wars of the Roses, 1455-1485
1
Warsaw Ghetto Uprising, 1943
1