Sunflower Showdown to pay for the construction of Allen Fieldhouse, which would seat 17,000. KU opened the facility with a 77–66 victory over Kansas State on March 1, 1955. This period also saw the beginning of the 'Sunflower Doubleheader', with two non-conference teams visiting the state to play KU and K-State at one venue one night, then switching venues and opponents the following evening. This event was held from 1957 to 1968, and featured national powerhouses such as UCLA, Xavier, San Francisco, St. Joseph's, Cal, and Marquette. The basketball rivalry between the two schools continued unabated through the 1960s and 1970s, with
State highways deleted by the Utah State Legislature in 1969 which was subsequently renumbered to SR-26 as part of the 1977 Utah state route renumbering in order to avoid confusion with US-50. State Route 53 connected SR-8 (now US-6/US-191) at Wellington with SR-6 (now US-40) west of Myton via Nine Mile Canyon Road. The road was taken over on January 10, 1916, and immediately reused to replace part of SR-37 in Ogden after its 1969 deletion. State Route 54 was created as a renumbering of a branch of SR-12 to Tropic. That same year, a new State Route 120 was created, continuing the road from Tropic to Henrieville, and in