April 21st (1992) was a Tuesday. It's the 110th day of the year (111th in leap years) in the Gregorian calendar. There are 255 days left to the end of the year.
Historical Events for 21st April, 1992
» The first discoveries of extrasolar planets are announced by astronomers Alexander Wolszczan and Dale Frail. They discovered two planets orbiting the pulsar PSR 1257+12.