Welcome to Sigma Pi

Gamma Iota chapter began in 1963 as Psi Theta Nu Fraternity, a local fraternity comprised of like-minded individuals at Worcester Polytechnic Institute. As a local fraternity, "PTN" had no overarching organization to support it. After vetting fraternities across the country for one year, PTN decided to apply to become a chartered and recognized chapter of Sigma Pi Fraternity. After another year, on May 1st, 1965, Psi Theta Nu received its charter from Sigma Pi Fraternity.