Dutch astronomer Johannes Fabricius discovered sunspots.
Sunspots are regions of reduced surface temperature on the sun.
Source
Barbie was presented to the public for the first time.
The Inter Milan soccer club was formed.
Space Shuttle Discovery completed its last-ever mission and made its final landing onto Kennedy's runway at 11:57 am EST.
The American Motors Corporation, best known for creating the Jeep, was bought out by Chrysler.
The Soviet spacecraft Sputnik 9 was launched into orbit.