Alpha Omicron Pi is an international women's fraternity founded on January 2, 1897, at Barnard College at Columbia University in New York City. In 1898, national expansion began. Now, over 100 years later, AOII has more than 170 chartered collegiate chapters in 39 states and Canada and over 230 chartered alumnae chapters. Over 100,000 women, collegiate and alumnae, represent a full range of diverse backgrounds and interests.
Alpha Omicron Pi was founded by Stella George Stern Perry, Elizabeth Heywood Wyman, Jessie Wallace Hughan, and Helen St. Clair Mullan. In 1939, Stella George Stern Perry spoke these words as she explained the reasons for the founding of this fraternity: "We formed AOII to continue the friendships we made in college throughout our lifetimes. We wanted a fraternity that should carry on the delightful fellowships and cooperation of college days into the workaday years ahead and to do so magnanimously. Above all, we wanted a high and active special purpose to justify existence and a simple devotion to some worthy end.”