Subject
History
13
United States
7
United States Race relations
5
Food habits History
4
Immigrants History
4
Indians of North America History
4
United States Emigration and immigration History
4
United States Politics and government
4
United States Race relations History
4
United States Social conditions
4
African Americans History
3
Nationalism
3
United States History
3
World War, 1939-1945
3
African Americans
2
African Americans Civil rights History
2
African Americans Segregation History
2
African Americans Social conditions
2
Agriculture Social aspects History
2
Agriculture and state History
2
Art History
2
Art, Modern History
2
Baseball History
2
Basketball History
2
Censorship History
2
China Emigration and immigration History
2
Cryptography History
2
Diet History
2
Excavations (Archaeology)
2
Feminism History
2
Germany History
2
Hispanic Americans History
2
History, Modern
2
Human beings History
2
Immigrants
2
Imperialism History
2
Indigenous peoples History
2
Influence
2
Intelligence service History
2
Japan History
2
Latin America Relations
2
Literature and society History
2
Minorities History
2
National characteristics, American
2
National socialism
2
Nationalism History
2
Race discrimination History
2
Reconstruction (U.S. history, 1865-1877)
2
Transgender people History
2
Ukraine History
2
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