Region
United States
549
Great Britain
19
Italy
8
Greece
6
France
4
Germany
4
Pennsylvania
4
Delaware
3
Developing countries
3
Massachusetts
3
Canada
2
Europe
2
Israel
2
Québec (Province)
2
Rome
2
Waltham
2
États-Unis
2
Alaska
1
Albany
1
Central America
1
Connecticut
1
France, Northern
1
Middle West
1
New York (State)
1
Philadelphia
1
Philosophy
1
Political science
1
Reagan, Ronald
1
Soviet Union
1
USA
1