Era
20th century
20
20th century. --
12
19th century
6
1945-
5
20th century --
5
Japanese occupation, 1942-1945
4
Cyprus Crisis, 1974-
3
Malayan Emergency, 1948-1960
3
1517
2
1889-1945
2
1933-1945
2
1979-
2
1989-
2
19th century --
2
Congresses
2
Cyprus Crisis, 1963
2
1000-1699
1
1400-1965
1
1400-2004
1
1400-2004 --
1
1478 - 1798
1
1510-1957
1
15th century
1
1681-1942
1
1799-1917
1
17th century
1
17th century --
1
1801-1873
1
1803-1868
1
1809-1865
1
1810-
1
1819-1867
1
1826-67
1
1830-2005 --
1
1839 - 1963
1
1841-1941
1
1841-1957
1
1848-1941
1
1853?-1931
1
1858-1921
1
1861-1865
1
1863-1947
1
1867-1947
1
1868-1873
1
1868-1873 --
1
1889-1902
1
1890-1990
1
1895-1914
1
1896-1941
1
1910-1943
1
more ...