In this Jan. 11, 2018, photo, slave collars and a KKK plate, top right, are among the artifacts of slavery and segregation collected by Alan Page, NFL Hall of Famer and retired Minnesota Supreme Court justice, and his wife, Diane Sims Page. They went on display at the Minneapolis Central Library this month in time for Super Bowl visitors and thousands of other people expected to flock to downtown for the festivities. (AP Photo/Steve Karnowski)