Era
20th century
31
To 1763 (New France)
18
19th century
13
1914-1945
7
1945-
7
Colonial period, ca. 1600-1775
7
Quaternary
6
21st century
5
To 1803
5
War of 1812
5
1939-
4
Devonian
4
Precambrian
4
1763-1867
3
1867-1914
3
1980-
3
Proterozoic
3
1574-1635
2
1622-1698
2
1643-1687
2
1764-1820
2
1783-1865
2
1786-1847
2
1791-1841
2
17th century
2
1823-1893
2
1867-
2
1918-1945
2
1959-
2
1960-
2
1969-
2
Cretaceous
2
King William's War, 1689-1697
2
Rebellion, 1837-1838
2
1685-1749
1
1740-1807
1
1755-1763
1
1763-1791
1
1775-1783
1
1783-1815
1
1787-1853
1
1787-1858
1
1789-1869
1
1827-
1
1827-1915
1
1841-1867
1
1841-1919
1
1842-1972
1
1844-1885
1
1856-1939
1
more ...