Graydon Cress (Czech Republic) sent in this interesting article about the Olympic salute and how it faded out into history.

http://www.todayifoundout.com/index.php/2012/08/the-official-olympic-salute-stopped-being-popularly-used-after-wwii-due-to-strongly-resembling-the-heil-hitler-salute/

2 Bonus points to Graydon Cress