The 21st Century Puzzle Crossword (Zhang Xi Hua) U.S. History, Spring 2026

12345678910111213141516
Across
  1. 2. What thin atmospheric layer blocks dangerous solar radiation and suffered damage from human-made chemical pollutants?
  2. 3. Dictator of Iraq who invaded oil-rich Kuwait in August 1990
  3. 6. First female U.S. Secretary of State, appointed by President Bill Clinton in 1997
  4. 9. Worldwide computer network that exploded in popularity in the 1990s
  5. 10. Code name for the U.S.-led military campaign to free Kuwait from Iraqi occupation
  6. 13. Vice President under Bill Clinton and Democratic presidential nominee in the disputed 2000 election
  7. 14. Worldwide trend of growing economic and cultural connections between all nations
  8. 15. What term describes chemical, nuclear, or biological arms capable of killing thousands of people at once, the focus of U.S. conflict with Iraq in 2003?
  9. 16. What violent tactic do extremist groups use to frighten governments and civilians for political gain?
Down
  1. 1. New York City twin tower business complex destroyed during the September 11, 2001 terrorist attacks
  2. 4. Who was the Saudi exile leader that founded the extremist terrorist group responsible for 9/11?
  3. 5. U.S. Department of Defense headquarters outside Washington D.C., struck by a hijacked plane on 9/11
  4. 7. What terrorist organization planned and carried out the September 11 attacks against the United States?
  5. 8. U.S. president elected in 1988 who led the Persian Gulf War coalition
  6. 11. What name describes the massive shift in communication and information sharing caused by widespread home computer and internet access in the 1990s?
  7. 12. Modern U.S. economic system focused on healthcare, retail, education instead of factory manufacturing