Region
United States
3,398
Great Britain
29
Canada
17
China
16
Latin America
12
États-Unis
10
Europe
8
Massachusetts
7
Middle East
7
Soviet Union
7
Japan
6
Foreign countries
5
Germany
5
Greece
5
Pacific Area
5
Russia (Federation)
5
Africa
4
France
4
India
4
USA
4
Cambridge
3
New England
3
Rome
3
Southern States
3
Connecticut
2
Developing countries
2
Ecuador
2
Egypt
2
English-speaking countries
2
Mexico
2
Pacific Ocean
2
Pennsylvania
2
Russia
2
Tacoma
2
Tacoma (Wash.)
2
Tennessee
2
Washington (State)
2
Afghanistan
1
America
1
Arab countries
1
Art
1
Australia
1
Austria
1
Boston
1
Brazil
1
California
1
Curricula
1
East Asia
1
Education
1
Estados Unidos
1
more ...