D - General History 16,128
DS - Asia 8,857
DT - Africa 3,492
DK - Russia, Soviet Union, Former Soviet Republics, Poland 3,288
DD - Germany 1,538
DC - France, Andorra, Monaco 955
DA - Great Britain 823
DR - Balkan Peninsula 580
DG - Italy, Malta 496
DL - Northern Europe, Scandinavia 408
DF - Greece 351
DQ - Switzerland 347
DU - Oceania (South Seas) 327
DB - Austria, Liechtenstein, Hungary, Czechoslovakia 258
DP - Spain, Portugal 206
DJ - Netherlands (Holland) 143
DH - Low Countries 62
DE - Grecco-Roman World 61
DJK - Eastern Europe (General) 48
DX - Gypsies 12
DAW - Central Europe 2
E - United States History 2