Era
20th century
6
1927-1987
5
1890-1950
3
1891-1972
3
1908-1987
3
1942-
3
1805-1879
2
1899-1991
2
1936-2017
2
1943-1987
2
1952-
2
-1924
1
1862-1928
1
1878-1942
1
1879-1951
1
1880-1942
1
1886-1973
1
1893-1992
1
1897-1986
1
18th century
1
1905-1986
1
1905-1990
1
1907-1934
1
1911-1974
1
1914-1940
1
1930-
1
1930-2018
1
1945-
1
1947-
1
1949-
1
1956-
1
1964-
1
19th century
1
German occupation, 1940-1945
1