What is the most famous/amazing come-from-behind knockout of all time (BESIDES Foreman-Moorer)?

The fight that will forever stand out for me is the Weaver vs Tate fight. I was in the Navy and watching the fight with a friend of mine and pulling for Big John Tate from Tennessee to beat Hercules Mike Weaver. And round after round in this 15 rounder, Tate clearly outboxed Weaver and arguably every round though today I'm not really sure if he won every round or not, but it sure seemed that way. All Tate had to do in that 15th round was stick and move and just stay away from Weaver who obviously had to knock out Tate in order to win the fight. ANd with what about one minute left in this fight and sure that we were going to see Big John's hands raised in a decision victory, BAM! and down went John Tate like a big old oak tree completely out before he ever hit the canvas. We were yelling for him to get up but when they zeroed down on his prone body, we knew it was over. Great question sir.