Top Ten Events of the 1980's By Natnat1016 Sep 22, 1980 Iraq invades Iran Oct 25, 1984 US Invades Grenada Dec 3, 1984 Union Carbide Gas Leak in India Jan 28, 1986 Challenger Explosion Apr 26, 1986 Chernobyl Meltdown Aug 7, 1987 Central American Countries Sign Regional Peace Plan Oct 19, 1987 New York Stock Market Crashes Dec 9, 1987 Gaza Strip and West Bank Erupt in Violent Unrest May 4, 1989 Oliver North Arrested Dec 3, 1989 US and Soviets end Cold War