Era
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1896-1976
2
18th century
3
1900-1999
19
1901-1985
2
1901-1991
1
1902-1995
1
1903-
1
1903-1973
1
1903-1994
1
1904-
1
1904-1983
2
1904-1992
1
1906-
2
1906-1972
1
1906-1993
1
1908-1994 or 5
1
1908-1996
2
1910-1946
1
1911-1998
1
1914-1934
2
1916-1980
1
1924-2013
1
1927-2019
1
1933-1945
3
1933-1989
1
1934-
2
1935-
1
1935-1978
1
1936-
1
1942-
1
1945-1989
5
1945-2014
4
1948-
2
1949-
1
1951-
4
1957-
1
1989-
1
1998
1
19th century
28
20th century
44
21st century
2
Cambrian
1
Civil War, 1861-1865
8
Colonial period, ca. 1600-1775
4
Conquest, 1519-1540
2
European intervention, 1861-1867
1
From 230 to 570 million years ago
1
From 425 to 570 million years ago
1
Geschichte 1848-1978
1
Hasta 1848
1
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