Era
1900 - 1999
20th century
49
1900-1999
10
1806-1865
1
1831-1894
1
1900-1910
1
1905-1911
1
1939 - 1945
1
1944-1989
1
1945-1972
1
1945-1989
1
1945-1991
1
1970-1991
1
1975-1985
1
1985-1995
1
1989-
1
1995-2005
1
19th century
1
21st century
1
Civil War, 1936-1939
1
Revolution, 1905-1907
1
Revolution, 1917-1921
1
Since 1989
1