Date: 6/15/1977

Six years after the Mets traded young fireballer Nolan Ryan and watched him become a superstar, they traded Tom Seaver — their best pitcher, the face of the franchise, a three-time Cy Young Award winner — for four middling Cincinnati Reds. He was 7-3 at the time, and would finish the season at 21-6. It's a wonder there weren't riots.