Subject Region
Abkhazia (Georgia)
1
Afghanistan
2
Africa
2
Africa, West
1
Alabama
2
Alaska
1
Amchitka Island
1
America
1
Amsterdam
1
Asia
1
Australia
4
Austria
2
Balkan Peninsula
1
Belfast (Northern Ireland)
2
Berlin
1
Berlin (Germany)
1
Birmingham
1
Birmingham (Ala.)
1
Bornholm (Denmark)
1
Bosnia and Herzegovina
1
Brańsk
1
Brańsk (Poland)
1
Budapest
1
Budapest (Hungary)
1
Burma
1
Byzantine Empire
2
California
7
Cambodia
3
Canada
7
Caribbean Area
1
Channel Islands
1
Chappaquiddick Island
1
Chappaquiddick Island (Mass.)
1
Chicago
2
China
9
Communist countries
1
Confederate States of America
3
Costa Rica
1
Cuba
5
Dawson
1
Dawson (Yukon)
1
Denmark
4
Detroit
1
East Los Angeles
1
East Los Angeles (Calif.)
1
Egypt
4
El Salvador
1
England
9
Estonia
1
Europe
10
more ...