From the mid-1970s to the late 1980s, the university enjoyed sustained growth. In 1970, the Collège Saint-Jean began offering French-language instruction in arts, science and education. In 1984, the School of Native Studies was established. Buildings that had been started in the 1960s, such as Biological Sciences, its biotron facility, and the Central Academic Building, were completed in the early 1970s. Extensive renovations restored the venerable Arts Building, as well as the Athabasca and Pembina halls. New buildings completed in the early 1980s included the Business Building and the first phase of the Walter C. Mackenzie Health Sciences Centre. Another new building, the distinctive Universiade Pavilion (nicknamed the "Butterdome"), was completed as part of the university's preparations to host the World University Games in 1983, the first time the event was held in North America.