Subject Region
United States
672
Great Britain
353
France
150
Europe
131
Greece
87
Latin America
85
China
73
Mexico
73
Germany
56
America Latina
54
Rome
51
Spain
42
England
41
Argentina
39
India
39
Canada
34
Espana
33
Japan
32
Italy
31
Chile
28
Soviet Union
18
Developing countries
16
Africa
14
Europe, Eastern
14
European Union countries
14
Islamic Empire
14
Colombia
13
Middle East
13
Russia
13
Arab countries
12
Florence (Italy)
12
Islamic countries
12
Scotland
12
Australia
10
Europe, Central
8
Peru
8
Asia
7
Athens
7
Brazil
7
Indonesia
7
Iran
7
Ireland
7
Netherlands
7
Poland
7
Turkey
7
Venezuela
7
Austria
6
Southern States
6
Athens (Greece)
5
Cuba
5
more ...