- Apollo 11 astronauts Neil A. Armstrong and Edwin E. Aldrin, Jr., take first walk on the Moon (July 20).
- The US, USSR, and about 100 other countries sign the nuclear nonproliferation treaty (NPT).
- ARPA goes online, connecting four major universities as the foundation the Internet was built from.
- The scanning electron microscope is developed.
- The FCC bans all cigarette advertising on television and radio | DDT is banned in residential areas.
- World Population: 3.6 Billion (about the sustainable limit).
- Median Household Income: $8,400 | Gold: $40 per ounce