The University of North Dakota had also been openly rumored to have been courted by the Summit League, but controversy over the Fighting Sioux nickname in all likelihood prevented UND's admission at that time. Expectations that UND would join the Summit League came to an end on November 1, 2010, when North Dakota instead accepted an invitation to join the Big Sky Conference. The University of South Dakota entered into very brief negotiations to join the Big Sky as well, rather than continuing their plans to join the Summit. However, South Dakota chose instead to remain with the more compact Summit League (along with other Dakota schools, NDSU and SDSU). As the University of Nebraska Omaha began the transition to Division I athletics in all sports, it joined the Summit League on July 1, 2012. With the departures of Centenary to Division III at the end of the 2010-11 athletic year, and Southern Utah and Oral Roberts for other Division I conferences at the end of the 2011-12 athletic year, the Summit League continued with nine institutions, all within the Midwest geographical region.