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Subjects
- Ecology.[remove]3
- African Americans -- Civil rights.1
- Biology.1
- Demonstrations.1
- Drug abuse.1
- Evolution (Biology)1
- Marijuana.1
- Music -- Michigan -- Ann Arbor.1
- Police -- Illinois -- Chicago.1
- Police -- Michigan.1
- Political parades and rallies.1
- Riots -- Illinois -- Chicago.1
- Riots.1
- Slogans.1
- Symbols.1
- Vietnam War, 1961-1975 -- Protest movements.1