SUBJECT
United States
History
12
Foreign relations
6
Central America
4
Politics and government
4
Fiction
3
Boston (Mass.)
2
El Salvador
2
Farm life
2
1912-1937
1
20th century
1
America
1
Americans
1
Bahamas
1
Caribbean Area
1
Central Intelligence Agency
1
China
1
Civil rights
1
Democracy
1
Dept. of Defense
1
Discovery and exploration
1
Family
1
Foreign relation
1
Geopolitics
1
Hagerstown (Md.)
1
History, Naval
1
Human rights
1
Intelligence service
1
International economic order
1
Islamic countries
1
Latin America
1
Maryland
1
Medical laws and legislation
1
National security
1
New Left
1
Nicaragua
1
Oakes, Blackford (Fictitious character)
1
Plantation life
1
Plantations
1
Political fiction
1
Ransom
1
Relations
1
Relations (general) with Mexico
1
Relations(general) with United States
1
Revolution, 1775-1783
1
Sources
1
Southwest, New
1
Space flight to Mars
1
Spanish
1
Territorial expansion
1
more ...