Era
20th century
62
21st century
38
2011-2020
33
1900-1999
20
19th century
17
2001-
15
1946-
13
Civil War, 1861-1865
10
Revolution, 1775-1783
10
2000-2099
9
1942-2016
8
1783-1789
5
1933-1945
5
Confederation, 1783-1789
5
To 1863
5
17th century
4
1865-1877
4
1865-1898
4
18th century
4
1939-
4
1943-
4
1948-
4
1961-1970
4
2017-2021
4
Victoria, 1837-1901
4
1564-1616
3
1860-1890
3
1889-1945
3
1900-1945
3
1904-1989
3
1907-1964
3
1918-1933
3
1919-1933
3
1929
3
1931-
3
1935-
3
1945-
3
1947-
3
1955-
3
1956-
3
1963-
3
1976-2000
3
1978-
3
1980-
3
1982-
3
2000-
3
2001-2009
3
2021-
3
Colonial period, ca. 1600-1775
3
1785-1851
2
more ...