On April 1 2021
March-April 2021: Due to the COVID-19 pandemic, all rounds of the Division I Men’s Basketball Championship are held in Indianapolis, and all rounds of the Division I Women’s Basketball Championship are held in San Antonio, marking the first time each tournament is played entirely in one geographic region.
Sources:
Sources: “In the Arena: The NCAA’s First Century” by Joseph N. Crowley, NCAA News and Champion magazine archives, the NCAA Media Center, and NCAA record books