ASU was founded in 1885 as the Tempe Normal School for the Arizona Territory in Tempe, Arizona. In 1945, the school came under control of the Arizona Board of Regents and was renamed "Arizona State College."In 1958, a statewide ballot measure renamed the school "Arizona State University." From its original campus in Tempe, ASU expanded in 1984, establishing the West campus in northwest Phoenix, followed by the 1996 addition of the Polytechnic campus in eastern Mesa and the 2006 addition of the Downtown Phoenix campus. All four campuses are accredited as a single institution by the Higher Learning Commission.