On this day in history in:
1940 - 1st successful helicopter flight in Stratford, Connecticut
1980 - Billy Joel's "Glass Houses" album topped the charts. His "It's Still Rock and Roll to Me" from that album was at the top of the singles charts for like forever that year.
Billy Joel - It's Still Rock and Roll to Me - YouTube
1994 - the comet Shoemaker-Levy crashed into Jupiter. So far as we know, Jupiter didn't mind it so much. The same day Crayola introduced scented crayons. I don't believe there is any connection between these two events, however.
2011 - Phoenix is hit by a massive haboob so amazing the Weather Channel still shows pics of it almost every week.