D - World History 83 E - United States History 23 J - Political Science 12 A - General Works 8 P - Language and Literature 7 G - Geography, Anthropology, Recreation 5 C - Historical Sciences 4 F - General American History 3 U - Military Science 2 B - Philosophy, Psychology, Religion 1 H - Social Science 1 L - Education 1 V - Naval Science 1