conference previously went by the names Big Five, Big Six, Pacific-8, and Pacific-10. The Pac-12 moniker was adopted in 2011 with the addition of Colorado
conference champions in sports sponsored by the Pac–12 Conference. Through May 25, 2024 No school has left the Pac–12 since its founding as the AAWU in 1959
Named By PAC-8". The Oregon Statesman. March 15, 1968. Sec. III, p. 18. Retrieved December 26, 2018 – via Newspapers.com. "Stars Picked In Pacific-8 By Coaches"