Subject Region
United States
87
England
68
Great Britain
51
Italy
18
New York (State)
14
France
12
New York
12
Ireland
11
Cambridge
10
Europe
10
Pennsylvania
9
Egypt
8
Spain
8
California
7
Florence
7
London
7
Oxford
6
Africa
5
Canada
5
China
5
Massachusetts
5
Netherlands
5
Philadelphia
5
Switzerland
5
Germany
4
Islamic Empire
4
Islamic countries
4
Scotland
4
Turkey
4
Virginia
4
America
3
Asia
3
Belgium
3
Ethiopia
3
Greece
3
Leeds (England)
3
Mali
3
Mexico
3
Michigan
3
Rome
3
Tombouctou
3
Wakefield (England)
3
Washington (D.C.)
3
Yorkshire
3
Yorkshire (England)
3
Zurich
3
Africa, Northwest
2
Africa, West
2
Armenia (Republic)
2
Bloomington
2
more ...