Original sentence: Kappa Sigma (1869) — In 2002, Kappa Sigma withdrew their membership from the North-American Interfraternity Conference due to disagreements with the strategic direction of the organization
Edited sentence: Kappa Sigma (KΣ) 1869: In 2002, Kappa Sigma withdrew their membership from the North-American Interfraternity Conference due to disagreements with the strategic direction of the organization