Captain Nathaniel Palmer discovered Antarctica.
Standard time began in the United States.
Mickey Mouse made his debut in Steamboat Willie.
Spain's parliament approved a bill to establish a democracy after 37 years of dictatorship.
Jim Jones, a U.S. pastor, led 914 of his followers to their deaths at Jonestown, Guyana, by drinking a cyanide-laced fruit drink. Cult members who refused to swallow the drink were shot.
The Massachusetts Supreme Court ruled 4-3 that the right to same sex marriage was guaranteed by the state constitution.