Geographic Subject
Germany
746
India
121
Prussia
63
Switzerland
33
France
29
Russia (Federation)
28
Japan
26
Poland
25
United States
22
Soviet Union
21
China
20
Berlin
18
Indonesia
16
Russia
16
Sweden
15
England
10
Serbia
10
Sri Lanka
10
Austria
9
Malaysia
9
Netherlands
9
Bavaria
8
Great Britain
8
Africa
7
Bengal
6
Massachusetts
6
Pakistan
6
Tanzania
6
Alabama
4
Cuba
4
Europe
4
Hamburg
4
Rome
4
South Africa
4
Ukraine
4
Yugoslavia
4
Zurich
4
Asia
3
Basel
3
Colombia
3
Egypt
3
Iran
3
Kazakhstan
3
Kiel
3
Kyoto
3
Lithuania
3
North Carolina
3
Siberia
3
Turkey
3
4.050
2
more ...