Era
20th century
30
1900-1999
16
19th century
13
1800-1899
7
1939-1945
7
2013
5
1900 - 1999
4
1933-1945
4
1775-1865
3
2000-2099
3
2008
3
2016
3
21st century
3
1412-1431
2
1564-1616
2
1775-1783
2
1809-1865
2
1865-1898
2
1867-1957
2
1898-1951
2
18th century
2
1929
2
1929-1968
2
1947
2
1950-
2
1989
2
1990
2
1991
2
1992
2
2005
2
2011
2
2012
2
2015
2
20e siècle
2
George VI, 1936-1952
2
Louis IX, 1226-1270
2
Nicholas II, 1894-1917
2
Occupation, 1939-1945
2
Revolution, 1775-1783
2
United States
2
Victoria, 1837-1901
2
10th century
1
117-138
1
1200-1299
1
1226-1270
1
13th century
1
1422-1461
1
1475-1564
1
1483-1520
1
1492-1559
1
more ...