Era
20th century
9,097
19th century
4,476
18th century
1,409
21st century
1,026
17th century
807
1945-
736
16th century
435
Early modern, 1500-1700
347
1933-1945
343
1564-1616
263
1918-1945
195
1918-1933
191
20TH CENTURY
187
History
152
Revolution, 1789-1799
142
Victoria, 1837-1901
133
1989-
122
1945-1989
120
1990-
118
Early modern and Elizabethan, 1500-1600
115
19TH CENTURY
113
1837-1901
100
1789-1900
97
1871-1918
87
British occupation, 1765-1947
85
Civil War, 1936-1939
85
Unification, 1990
85
1882-1941
82
1917-1936
81
Revolution, 1775-1783
81
Colonial period, ca. 1600-1775
79
1945-1990
76
Revolution, 1917-1921
75
1936-1945
72
Middle English, 1100-1500
71
1910-1936
65
German occupation, 1940-1945
65
Civil War, 1861-1865
64
To 1500
62
Stuarts, 1603-1714
55
1812-1870
52
1878-1953
52
Tudors, 1485-1603
52
1949-
50
1960-
49
1991-
49
1889-1945
47
Medieval period, 1066-1485
47
1971-
46
476-1492
46
more ...