Era
20th century
4
1900-2002
2
1921-2021
2
1926-2022
2
1930-2002
2
Elizabeth II, 1952-2022
2
1185-1600
1
1571-1622
1
1837-1913
1
1874-1965
1
1886-1965
1
1895-1952
1
1900-1977
1
1906-1967
1
1925-1970
1
1930-1989
1
1945-
1
21st century
1
794-1185
1
Bombardment, 1945
1
Civil War, 1861-1865
1
Qing dynasty, 1644-1912
1
To 1600
1