Mikhail T. Kalashnikov, creator...

...of the AK-47, died at age 94. Ever wonder where they got the name for that rifle? No? Well, I'm going to tell you anyway:

General Kalashnikov’s public life resulted from a secret competition to develop the Soviet infantry rifle for the Cold War. The result was the AK-47 — an abbreviation for “the automatic by Kalashnikov” followed by the year the competition ended.