Pi Kappa Sigma
Pi Kappa Sigma was a national collegiate sorority operating in the United States from November 17, 1894 until it was absorbed by Sigma Kappa in 1959. "Pi Kap" was the first pedagogical sorority.
Read more about Pi Kappa Sigma: Beginnings, Joining The Association of Education Sororities, Becoming An NPC Sorority, Sigma Kappa, Insignia, Traditions, Founder's Day Prayer, An Ideal of Pi Kappa Sigma