Geographic Subject
India
49
Russia (Federation)
24
Soviet Union
22
Germany
20
Indonesia
13
Africa
9
France
8
Congo (Democratic Republic)
7
Siberia
7
South Africa
7
United States
7
Algeria
6
Europe, Eastern
5
Italy
5
Cuba
4
Egypt
4
Oceania
4
Africa, Southern
3
Australia
3
Azerbaijan
3
Colombia
3
Europe
3
Great Britain
3
Greece
3
Haiti
3
Japan
3
Mexico
3
Portugal
3
Russian Far East
3
Slavic countries
3
Switzerland
3
Africa, Eastern
2
Asia, Central
2
Asia, Southeastern
2
Bihar
2
Bihar (India)
2
Burkina Faso
2
China
2
Czech Republic
2
Côte d'Ivoire
2
Eurasia
2
Germany (West)
2
Kerala
2
Madagascar
2
Malaysia
2
Morocco
2
Nepal
2
Netherlands
2
New Zealand
2
Nubia
2
more ...