Final answer:
Delta Chi became a general fraternity in 1922, transitioning from a fraternity exclusively for law students to one open to a broader membership.
Step-by-step explanation:
Delta Chi, originally founded as a professional fraternity for law students, became a general fraternity in 1922. This transition marked a shift from a professional law fraternity to a Greek letter general collegiate fraternity. Before 1922, Delta Chi was exclusively for law students, but the change allowed the membership of individuals outside the legal studies.