1980: Touching upon political changes, technological introductions like the GPS epoch, tragic accidents, cultural moments such as the release of Pac-Man, and the deaths of notable figures including John Lennon. The other source, a timeline from Timetoast, concentrates specifically on technological advancements during the 1980s, highlighting key inventions and their release dates, beginning with the Sony Walkman in 1980 and continuing with innovations throughout the decade, such as the IBM PC and the early concept of the internet.