Era
20th century
12
1900-1999
9
20e siècle
8
1907
5
1968
3
-1976
2
1811-1887
2
1871-1961
2
1900 - 1999
2
1928-2004
2
1972
2
-approximately 1840
1
1800-1899
1
1840-1902
1
1897 - 1921
1
1900-talet
1
1913-
1
1937-
1
1939-1945
1
1943-
1
1953-
1
1989
1
19th century
1
2013
1
Cambrian
1
Cambrien
1
Civil War, 1861-1865
1
Devonian
1
Dévonien
1
From 345 to 405 million years ago
1
From 500 to 570 million years ago
1
Pennsylvanian
1
Silurian
1
d. ca. 1840
1