Era
20th century
1897-1980
4
1861-1909
2
1863-1942
2
21st century
2
1856-1916
1
1871-1934
1
1888-1957
1
1890-1967
1
1895-1979
1
1896-1985
1
1900 - 1999
1
1900-1999
1
1905-1938
1
1915-1968
1
1916-1990
1
1926-
1
1933-1945
1
1943-
1
1955-
1
19th century
1
Civil War, 1861-1865
1
Iran-Iraq War, 1980-1988
1
World War, 1914-1918
1
World War, 1939-1945
1