Era
19th century
7
20th century
5
Primitive and early church, ca. 30-600
5
18th century
4
To 146 B.C.
4
To 1500
4
1800-1899
3
1900-1999
3
2000-2099
3
21st century
3
To 1775
3
17th century
2
1961-1975
2
1975-
2
1979-
2
510-30 B.C.
2
Colonial period, ca. 1600-1775
2
Since 1979
2
To 30 B.C.
2
1600-1799
1
1644-1912
1
1700-1899
1
1760-1820
1
1922-1945
1
1926-1984
1
1945-1989
1
1951-
1
1961-1991
1
1970-
1
1976-2002
1
1980-
1
1980-2020
1
1982-
1
1989-
1
1991-
1
2000-
1
2008-2009
1
30 - 600
1
30-600
1
Revolution, 1775-1783
1
Since 1970
1
Since 1975
1
Since 1980
1
Since 1982
1
Since 2000
1