Era
20th century
20e siècle
7
1900-1999
4
1800-1999
2
19e siècle
2
19th century
2
1858-1942
1
1887-1948
1
1901-1978
1
1908-1973
1
1933-1945
1
1945-
1
1945-1960
1
1945-1989
1
19th Century
1
20th Century
1
Geschichte 19. Jh
1
Geschichte 1900-1954
1
Geschichte 1943-1953
1
Geschichte 20. Jh
1
Pittsburgh
1
Since 1900
1