Era
20th century
31
1928-1967
18
1959-1990
17
Insurrection, 1868-1878
13
1933-1959
12
19th century
11
Revolution, 1895-1898
10
1853-1895
9
1878-1895
9
1900-1999
8
1868-1878
7
1959-
7
2001-2009
7
Revolution, 1959
7
1930-
6
1800-1899
5
1819-1874
5
1838-1914
5
Civil War, 1960-1965
5
1810-1899
3
1865-1877
3
1877-1947
3
1926-2016
3
1960-1965
3
1990-
3
21st century
3
Boxer Rebellion, 1899-1901
3
Philippine American War, 1899-1902
3
active 1837-1842
3
1750-1819
2
1779-1830
2
1783-1864
2
1821-1877
2
1827-1862
2
1834-1872
2
1836-1905
2
1846-1907
2
1858-1919
2
1865-1918
2
1868-1878 (Insurrection)
2
1869-1946
2
1880-1956
2
1880-1958
2
1888-1963
2
1892-1984
2
1895-1898
2
1898-1902
2
1898-1974
2
1898-1976
2
18th century
2
more ...