BBC Radio 4 first broadcast The Hitchhiker's Guide to the Galaxy on this day in 1978. On thus august, er, March anniversary, ponder this: "What do you get when you multiply six by nine?" The answer: 4213.
This is why the universe was replaced by something even more inexplicable and insane upon the publication of Restaurant at the End of the Universe in 1980. Reagan got elected, Thatcher consolidated power, and I changed grammar schools.
Have a Jinnan Tonix (or whatever equivalent exists on your planet) in celebration tonight!