Ära
20th century
21.438
19th century
8.840
21st century
5.572
1900-1999
4.528
18th century
2.968
1939-1945
2.301
Civil War, 1861-1865
2.250
1564-1616
1.927
1945-
1.740
1933-1945
1.603
1900 - 1999
1.422
1946-
1.413
17th century
1.184
Revolution, 1789-1799
1.166
2000-2099
920
1947-
832
Revolution, 1775-1783
812
1945-1989
808
1961-1970
802
1951-
727
2001-2010
725
1800-1899
688
1969-
683
1948-
662
1944-
591
1960-
586
1993-
581
1942-
577
1949-
574
1959-
550
1991-2000
523
1941-
511
1981-1990
507
1939 - 1945
503
Civil War, 1936-1939
502
1889-1945
499
Colonial period, ca. 1600-1775
499
1861-1865
491
16th century
490
1929
485
1943-
477
1952-
475
1955-
453
1917-1963
452
1935-
433
2001-2009
433
1936-
432
1809-1865
426
Revolution, 1917-1921
425
1918-1945
424
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