Era
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19e siècle
12
19th Century
1
19th century
12
20e siècle
20th Century
1
20th century
Geschichte 1800-1900
1
Geschichte 1820-1939
1
Geschichte 1860-1900
1
Geschichte 19. Jh
1
Geschichte 1900-1954
1
Geschichte 1915-1980
1
Geschichte 1917-1948
1
Geschichte 1920-2005
1
Geschichte 1935-1943
1
Geschichte 1943-1953
1
Geschichte 20. Jh
1
Pittsburgh
1
Since 1900
2
United States
1
World War, 1914-1918
1
ca. 20. Jh
1