Sigma Pi was founded in 1897 at Vincennes University by four men: Rolin Rosco James, William Raper Kennedy, James Thompson Kingsbury, and George Martin Patterson. Sigma Pi Fraternity International currently has 124 chapters and 5 colonies across the United States and Canada. The Iota Xi Chapter of Sigma Pi at Duke University chartered on April 14th, 2012 after having colonized just a year earlier.