Alpha Omicron Pi (', AOII, Alpha O) is an international women's fraternity founded on January 2, 1897, at Barnard College on the campus of Columbia University in Manhattan, New York City. "AOII," and "Alpha O," the familiar names of the fraternity, is open to women regardless of ethnicity, religion or socio-economic background, with over 140 active collegiate chapters and 159 active alumnae chapte... Wikipedia