Subject Region
United States
1,573
Great Britain
135
Spain
93
England
80
Europe
79
Espana
76
Canada
68
Massachusetts
59
Mexico
56
Latin America
45
China
33
Germany
31
Africa
28
Australia
28
Colombia
24
Pennsylvania
24
California
22
Latinoamerica
21
France
19
Ontario
19
Scotland
18
America Latina
16
Oxford
16
Cuba
15
South Africa
15
Southern States
15
Chile
13
Europa
13
Japan
13
Michigan
13
Easton (Northampton County)
12
India
12
Italy
12
New York (State)
12
Texas
12
North Carolina
11
Indiana
10
Cambridge
9
Czech Republic
9
Kenya
9
Malaysia
9
New England
9
Alabama
8
Kentucky
8
Maryland
8
Soviet Union
8
Ann Arbor
7
New Jersey
7
Wisconsin
7
Argentina
6
more ...