1980's By DCubed! Period: Jan 1, 1980 to Dec 31, 1989 1980's Apr 24, 1980 Global Economic Recession May 18, 1980 Mount St. Helens Erupts Dec 8, 1980 John Lennon Assassination Apr 24, 1984 Margaret Thatcher Assassination Attempt Apr 24, 1984 Macintosh 128K Released Jan 28, 1986 Challenger Explosion Apr 24, 1986 Halley's Comet Passes Apr 24, 1986 Porsche 989 Introduced Apr 24, 1988 US Drought of 1988 Apr 24, 1989 Tiananmen Square Protests