Era
20th century
26,866
19th century
13,017
1900-1999
12,210
21st century
9,856
18th century
5,160
17th century
4,506
1800-1899
4,344
2000-2099
3,956
To 1500
2,574
16th century
2,235
1800-1999
1,558
1700-1799
1,502
1564-1616
1,434
Civil War, 1861-1865
1,429
Early modern, 1500-1700
1,283
1900-2099
1,189
1945-
1,175
1939-1945
1,109
1946-
1,005
Revolution, 1775-1783
899
Colonial period, ca. 1600-1775
786
1989-
753
1991-
703
1945-1989
683
1861-1865
662
1933-1945
630
1700-1899
626
1775-1783
622
2009-
576
1600-1699
573
1674-1748
551
Civil War, 1642-1649
527
2001-2009
524
Middle Ages, 600-1500
514
1882-1941
494
1900 - 1999
459
Since 1900
459
Middle English, 1100-1500
453
Since 1945
453
1500-1599
443
1918-1945
431
1960-
428
1980-
428
1500-1700
422
1951-
408
2003-
391
2000-
387
1949-
362
Primitive and early church, ca. 30-600
358
1914-1918
347
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