1974 Event 1st intentional interstellar radio message sent, Arecibo telescope towards M 41, a cluster of stars some 25,000 light years away 1953 Event Cluster of 6 tornadoes touch down in Flint Michigan killing 113 1781 Event Andre Mechain discovers M80 (globular cluster in Scorpio) 1779 Event Charles Messier catalogs M56 (globular cluster in Lyra) 1777 Event Messier adds M53 to his catalog (globular cluster in Coma Berenice) 1765 Event Charles Messier catalogs M41 (galactic cluster in Canis Major)