Share This Article 1. In 1908, the University of Oklahoma adopted this nickname for its football team. “Sooners” “Rough Riders” “Buffalos” “Cherokees” 2. This was the codename for America’s plan to invade mainland Japan Guardian Thunderbolt Downfall Showboat 3. This was the NATO reporting name for the Mikoyan-Gurevich MiG-19. Fencer Farmer Flitter Foxbat Loading …