First class of baccalaureate graduates of Dine College, which marked its 30th Anniversary in 1998 as the oldest tribal college. Graduation day May 15, 1998. photo John Running. The first tribal college was Diné College, located in Tsaile, Arizona, was founded by the Navajo Nation as Navajo Community College in 1968 to educate its young people who are residents of the 26,000 square-mile Navajo Nation which is spread over Arizona, New Mexico, and Utah, while steeping them in their language, culture, and traditions.











