1920 The first commercial radio station began broadcasting. The station, in Detroit, Michigan, was owned by the Detroit News, and initiated the broadcast with a show called Tonight's Dinner

It's too bad it wasn't recorded and saved for posterity.







1975 Viking 1, an unmanned US planetary probe, was launched from Cape Canaveral, Florida, on a mission to Mars.

When you stop to think about it, Mars is a planet inhabited entirely by robots.