Era
20th century
31
1900-1999
11
19th century
6
1883-1954
4
1930-1945
4
Since 1900
4
18th century
3
1800-1899
2
1878-1953
2
1900 - 1999
2
1917-1970
2
1936-1953
2
1970-
2
1980-
2
21st century
2
1700-1999
1
1826-1920
1
1887-1967
1
1917-1979
1
1932-
1
1945-
1
1955-
1
1960-1988
1
1971-2000
1
1973-1985
1
1985-
1
1998-
1
2000-
1
Geschichte 1800-1900
1
Geschichte 1990-2004
1
Revolution, 1789-1799
1