Era
Civil War, 1861-1865
20
20th century
3
1922-2004
2
Revolution, 1775-1783
2
-1867
1
-1913
1
-1994
1
1755-1828
1
1760-1850
1
1775-1865
1
1788-1864
1
1805-1866
1
1817-1874
1
1822-1901
1
1823-1911
1
1824?-1881
1
1827?-1908
1
1828-
1
1828-1864
1
1830-1894
1
1831-1883
1
1832-1900
1
1833-
1
1833-1898
1
1835-1886
1
1835-1889
1
1836-1908
1
1837-1915
1
1839-1914
1
1839-1923
1
1840-1910
1
1840-1921
1
1841-1924
1
1842-1938
1
1843-
1
1849-1936
1
1862-1865
1
1866-1895
1
1895-
1
1897-1951
1
1912-
1
1915-2010
1
1921-
1
1923-
1
1923-2021
1
21st century
1
Foreign intervention, 1857-1861
1
Siege, 1863
1
Soviet occupation, 1979-1989
1
Taiping Rebellion, 1850-1864
1