Era
- 1991- 16 results
- 1917-1936 6 results
- 1985-1991 6 results
- 19th century 6 results
- 20th century 6 results
- 1860-1911 4 results
- 1879-1953 4 results
- 1953-1985 4 results
- Revolution, 1917-1921 4 results
- 1613-1917 2 results
- 1775-1917 2 results
- 1801-1917 2 results
- 1811-1868 2 results
- 1855-1881 2 results
- 1893-1991 2 results
- 1894-1971 2 results
- 1925-1953 2 results
- 1931-2007 2 results
- 1952- 2 results
- Attempted coup, 1991 2 results
- Civil War, 1994- 2 results