Era
1856-1939
5
19th century
4
Civil War, 1861-1865
4
1564-1616
2
1882-1941
2
approximately 420 B.C.-
2
1500-1700
1
1724-1804
1
1820-1891
1
1820-1891, USMA 1840
1
1873-1916
1
1882-1944
1
1885-1945
1
1896-1950
1
18th century
1
1900-1999
1
1902-1987
1
1909-
1
1909-1988
1
1918-2013
1
1923-2004, USMA 1946
1
1925-
1
1931-
1
1957-
1
1970-
1
1979
1
1984
1
1992
1
2000
1
20e siècle
1
20th century
1
Early modern, 1500-1700
1