On March 22 1980
March 20-22, 1980: Kenyon, under coach Jim Steen, begins the longest streak of consecutive team championships in any NCAA division with its first victory in the Division III Men’s Swimming and Diving Championships. After 31 straight victories, Kenyon took second to Denison in 2011 to end the streak.
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