Era
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1861-1917
18
World War, 1939-1945
18
1917-1963
17
1900 - 1999
16
1913-1994
16
Since 1945
16
1889-1945
15
1953-1991
15
1961-1963
15
1977-1981
15
1985-1995
15
1800-1999
14
1906-1975
14
1917-1991
14
1981-1985
14
Revolution, 1905-1907
14
1965-1975
13
1882-1945
12
18th century
12
1953-1961
12
1970-
12
1976-2000
12
February Revolution, 1917
12
1891-1953
11
1917-
11
1989-1993
11
Geschichte
11
1917 - 1936
10
1931-2007
10
1976-1980
10
1856-1924
9
1874-1965
9
1890-1969
9
1914-1921
9
1936-1945
9
1974-1977
9
Revolution, 1789-1799
9
Since 1900
9
1890-1960
8
1910-1936
8
1918-1933
8
1918-2008
8
1924-2018
8
1938-1942
8
Attempted coup, 1991
8
1871-1918
7
1884-1972
7
1895-1975
7
1898-1948
7
1904-1914
7
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