Region
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Bulgaria
4
Burma
7
Burundi
2
Byzantine Empire
1
California
1
Cambodia
1
Cameroon
1
Canada
51
Canadian-American Border Region
2
Canal Zone
1
Caribbean Area
40
Caribe, Area del
1
Caspian Sea
1
Caspian Sea Coast
1
Caspian Sea Region
4
Caucasus, Northern
3
Caucasus, Northern (Russia)
1
Caucasus, South
2
Central African Republic
4
Central America
40
Central Asia
1
Chad
7
Chechni͡a
2
Chiapas (Mexico)
2
Chile
2
China
261
Chine
1
Colombia
16
Communist countries
4
Congo (Democratic Republic)
1
Connecticut
1
Costa Rica
1
Crimea
2
Crimea (Ukraine)
3
Croatia
3
Cuba
13
Czech Republic
5
Danube River Region
1
Darfur
3
Delaware
1
Denmark
1
Developed countries
1
Developing countries
27
East Asia
36
East Asian
1
East China Sea
2
East Rutherford
1
Ecuador
1
Egypt
5
El Salvador
3
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