Subject Region
United States
2,700
Great Britain
38
Europe
37
Mexico
35
Massachusetts
34
Pennsylvania
26
Southern States
24
Rhode Island
23
Canada
22
Japan
18
New York (State)
16
Developing countries
15
California
14
China
12
North America
12
Connecticut
10
Philadelphia
10
Confederate States of America
9
Germany
8
European Union countries
7
Latin America
7
Mexican-American Border Region
7
New York
7
New York (N.Y.)
7
Philadelphia (Pa.)
7
West (U.S.)
7
Albuquerque
6
Los Angeles
6
New Hampshire
6
New Mexico
6
Soviet Union
6
Caribbean Area
5
Cuba
5
Estados Unidos
5
France
5
Italy
5
Texas
5
West Indies, British
5
America
4
Boston (Mass.)
4
Brazil
4
Central America
4
India
4
Maryland
4
Middle West
4
South Carolina
4
Vietnam
4
Argentina
3
Asia
3
Great Plains
3
Mais ...