Stanislav Petrov Day

Stanislav Petrov Day:

I was going to get you an alarm clock that occasionally goes off randomly in the middle of the night, but you can ignore it and go back to sleep and it's fine.

(Via xkcd)
Here’s the link you’re looking for: Stanislav Petrov.
Tl;dr: He’s the guy who didn’t launch the Soviet missiles in September 1983.

Be nice with what you write.