Topic
- Peace movements18
- African American students14
- Race discrimination14
- Women's rights14
- Police brutality12
- United States Capitol (Washington, D.C.)12
- Washington (D.C.)12
- Police11
- Police Dept.11
- Anti-apartheid activists10
- Anti-apartheid movements10
- University of Michigan10
- Depressions9
- Labor Day9
- Parades9
- Unemployed9
- Veterans9
- World War, 1939-19459
- College students8
- Strikes and lockouts8