Other
Law and legislation
Slavery
75
History
58
Taxation
42
Tariff
33
Legal status, laws, etc
28
Politics and government
24
African Americans
22
Discrimination in employment
20
Canals
17
Land tenure
15
Antislavery movements
14
Bridges
11
Civil rights
11
Education
11
Slave trade
10
Prisons
9
Affirmative action programs
8
Commerce
8
Navigation
8
Employment
7
Enslaved persons
7
Housing
7
Military pensions
7
Minorities
7
Race discrimination
7
Trials, litigation, etc
7
Veterans
7
Archives
6
Colonies
6
Controversial literature
6
Discrimination in education
6
Finance
6
Japanese
6
Periodicals
6
Public welfare
6
Race relations
6
Segregation in education
6
States
6
Coal mines and mining
5
Discrimination in housing
5
Droit
5
Harbors
5
Histoire
5
Inland navigation
5
Insanity (Law)
5
Poor
5
Prevention
5
Railroads
5
Abolitionists
4
more ...