Starting in the 1940s, freshman-sophomore centers were opened across the state. In 1968, the Green Bay center was upgraded to a full-fledged four-year institution as the University of Wisconsin–Green Bay, while the Kenosha and Racine centers were merged as the University of Wisconsin–Parkside. By 1971, the University of Wisconsin system consisted of campuses at Madison, Milwaukee, Green Bay and Kenosha/Somers, along with 10 freshman-sophomore centers and the statewide University of Wisconsin–Extension. The total enrollment of the University of Wisconsin system at that time was 69,554. The Board of Regents of the University of Wisconsin system consisted of ten members, nine of whom were appointed by the governor and confirmed by the senate for nine-year terms. The tenth was the State Superintendent of Public Instruction who served "ex officio" on both the University of Wisconsin and Wisconsin State University boards.