Era
19th century
120
20th century
84
1903
45
1902
38
1904
36
1900
35
1896
31
18th century
29
1901
29
1897
26
1898
24
1899
21
1906
21
17th century
19
1905
19
16th century
18
1895
18
1907
18
1894
17
1908
15
1893
13
1910
12
1909
11
1913
10
1479-1565
9
1892
9
1911
9
21st century
8
1896-1969
7
1912
7
Civil War, 1861-1865
6
Revolution, 1775-1783
6
1924-2019
5
To 1775
5
15th century
4
1739-1797
4
1895-1952
4
1919
4
Colonial period, ca. 1600-1775
4
To 400
4
1400-1600
3
1526 or 7-1585
3
1809-1892
3
1855
3
1864-1939
3
1878-1948
3
1880
3
1893-1934
3
1896-
3
1899-1995
3
more ...