The 1972 AFC Divisional Round is hugely historically important not just for the Pittsburgh Steelers, but for the history of the NFL. It marked the first postseason victory in history for a franchise that was formed in 1933. And it gave birth to the most iconic play in the history of the game, which has been voted the greatest play in NFL history.
It’s so intuitively obvious that it very nearly didn’t happen; after all, the fact that it was so incredibly improbable defines its unique place in history. But the circumstances of the game also make it remarkable as you recall everything that took place up to that point.