The modern NCAA tournament dates back to 1985, when the event expanded to 64 teams, introducing seed lines 13 through 16 for the first time. While it took more than three decades for a No. 16 seed to top a No. 1 in the first round, the 15-seeds took just a few years.
The Richmond Spiders made history at the 1991 NCAA tournament, taking down Syracuse—a team just a few years removed from a national title game appearance—during a first-round game in College Park, Md. They were the first of 11 teams seeded 15th to win a game in the tournament, with Florida Gulf Coast—a team affectionately dubbed "Dunk City" for its high-flying style of play—breaking through as the first 15-seed to reach the second weekend.
