September
NASA's Voyager 1 spacecraft, closing in on Jupiter, transmits striking new images revealing details of the planet's turbulent atmosphere and moons.
October
The Panama Canal Zone officially ceased to exist as the U.S. began transferring control of the canal to Panama under the Torrijos-Carter Treaties.
Chinese authorities publicly signaled the coming nationwide one-child policy, a demographic experiment that would reshape family life for a generation.
The International Olympic Committee voted to recognize the People's Republic of China as "China," relegating Taiwan to compete as "Chinese Taipei."
November
Iranian students stormed the U.S. Embassy in Tehran, taking 66 Americans hostage in a crisis that lasted 444 days.
A day after militant students seized the US Embassy in Tehran, Ayatollah Khomeini publicly endorsed the takeover, hardening a crisis that would last 444 days.