Era
20th century
22
20th century --
12
19th century
8
21st century
4
1847-1931
3
1871-1948
3
1897-1937
3
1955-2011
3
World War,1939-1945
3
1832-1923
2
1930-
2
1939-1945
2
1955-
2
19th century --
2
1136-1206
1
16th century
1
1757-1834
1
1800-2000 --
1
1809-1903
1
1837-1926
1
1867 -1912
1
1867-1912
1
1874-1937
1
1876-1941
1
1883-1970
1
18867 -1912
1
18th century
1
1905-1995
1
1907-1966
1
1912-19777
1
1914-
1
1914-1918
1
1914-1952
1
1917-1963
1
1925-
1
1926-
1
1927-
1
1930-2012
1
1934-1968
1
1936-
1
1939-1945 --
1
1950s-2009
1
1959
1
1961-
1
1964-
1
1972-
1
1997/1998
1
19h century
1
2010
1
20thh century
1
more ...