Ten students formed a chapter at the University of Missouri, Columbia, in April 2006. In December of that year a university administrator notified them that the chapter would have to abide by campus prohibitions on discrimination based on "race, color, religion, national origin, ancestry, age, gender, sexual orientation, disability" or status as a Vietnam War veteran. The students objected, with assistance from the Christian Legal Society, which sent university officials a letter listing several legal precedents protecting religious student groups' First Amendment rights of free association. In response, the university quickly reversed the directive.