Historical Period
1989-
83
1945-
59
1945-1989
21
20th century
11
1918-1945
8
21st century
5
Since 1989
5
1981-1993
4
1868-
3
1912-1945
3
19th century
3
1974-1990
2
1990-
2
1836-1918
1
1868-1912
1
1868-1918
1
1900 - 2099
1
1900-1999
1
1912-1949
1
1914-1993
1
1926-1989
1
1937-1945
1
1945-1960
1
1945-1964
1
1954-
1
1976-2000
1
Since 1868
1
To 1600
1
To 1868
1