protested the Kent State shootings. In 1975, enrollment swelled to a record 8,500. The 1970s also saw the establishment of the John D. Odegard School of Aerospace Sciences at UND. During the 1980s and 1990s the university continued to grow. However, the devastating 1997 Red River flood inundated numerous buildings on campus and forced the cancellation of the remainder of the school year.
=== 21st century ===
The start of the 21st century was marked by the opening of two major venues for UND athletics. The Ralph Engelstad Arena, home of men's and women's hockey, and the Alerus Center, home of UND football, both opened in 2001. The Betty Engelstad Sioux Center opened in August 2004, and serves as home to UND volleyball and men's and women's basketball.
Millions of dollars worth of construction and renovation projects have dotted the campus landscape. As part of a plan to improve student facilities on campus, UND constructed a Wellness Center, a parking garage, new Memorial Union, renovated library, renovated …
