Era
Civil War, 1861-1865
3,417
19th century
833
1911-1920
649
20th century
596
1941-1950
507
500-1400
497
To 1901
428
Revolution, 1775-1783
416
1901-1910
391
1939-1945
376
1921-1930
342
1931-1940
341
17th century
338
1809-1865
331
2001-2010
310
1900-1999
298
1564-1616
281
1991-2000
264
18th century
241
16th century
210
1732-1799
206
Revolution, 1789-1799
203
1951-1960
201
1800-1899
196
1749-1832
189
2011-2020
182
War of 1812
174
1861-1865
167
1769-1821
163
1961-1970
160
1981-1990
159
15th century
158
1631-1700
146
-approximately 1540
144
1220-1263
127
Civil War, 1936-1939
124
1412-1431
122
1914-1918
122
1861 - 1865
121
1971-1980
118
1662-1694
111
1819-1892
106
1929-1968
106
1685-1750
105
2001
101
1875-1926
99
1600-1699
93
21st century
92
2001 - 2010
89
1917-1963
83
more ...