Era
20th century
36
1900-1999
6
1950-
4
1945-
3
1945-1989
3
1918-1945
2
1980-
2
Twentieth century
2
1865-1918
1
1865-1921
1
1868-
1
1879-1955
1
1885-1972
1
1889-1976
1
1902-
1
1904-1967
1
1913-1921
1
1917-
1
1918-1933
1
1945 - 1989
1
1960-1980
1
1961-1969
1
1970-
1
1981-
1
1989-
1
21st century
1
Civil War, 1936-1939
1
George V, 1910-1936
1
Geschichte 1900-2000
1
Revolution, 1917-1921
1
Since 1945
1