Across
- 2. Oil spill off Alaska in 1989.
- 3. U.S. President and WWII general.
- 4. Soviet then Russian space station operational from 1986 to 2001.
- 7. Site of a 1970 protest shooting.
- 10. Leader of North Vietnam during the Vietnam War.
- 11. 1968 reform movement crushed by Soviet troops.
- 17. Group advocating for African American rights.
- 18. Fear of computer failures at the turn of the millennium.
- 19. Nonviolent transition of power in Czechoslovakia, 1989.
- 20. 1955 action following Rosa Parks' arrest.
Down
- 1. 1956 international crisis over the Suez Canal.
- 5. 1980s scandal involving secret U.S. arms sales.
- 6. Easing of Cold War tensions in the 1970s.
- 8. French leader who established the Fifth Republic.
- 9. U.S. senator known for anti-Communist crusade.
- 12. Antiapartheid leader released in 1990.
- 13. Space telescope launched in 1990.
- 14. San Francisco politician and gay rights activist assassinated in 1978.
- 15. Region attempting to secede from Nigeria, leading to civil war.
- 16. Vehicle used by Apollo 15 on the moon.