Subject
Agriculture and politics
History
24
Economic aspects
17
Agriculture and state
16
Political aspects
15
Agriculture
14
Politics and government
13
Economic conditions
8
Food supply
7
Rural conditions
7
Capitalism
5
Farmers
4
Food security
4
Foreign relations
4
Progressivism (United States politics)
4
Social conditions
4
African Americans
3
Family farms
3
Forest policy
3
Forests and forestry
3
Government policy
3
Human ecology
3
Imperialism
3
Land reform
3
Peasants
3
Political activity
3
Political parties
3
Race relations
3
Segregation
3
Agricultural laborers, Foreign
2
Agriculture, Cooperative
2
Antislavery movements
2
Breeding
2
Child migrant agricultural laborers
2
Communism and agriculture
2
Culture conflict
2
Culture conflict in literature
2
Culture conflict in motion pictures
2
Emigration and immigration
2
Extension to the territories
2
Factory farms
2
Farm tenancy
2
Group identity
2
Industrialization
2
Land tenure
2
Land use
2
Migrant agricultural laborers
2
Parks
2
Philosophy
2
Pork industry and trade
2
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