Alpha Omicron Pi (AOII) is a women's fraternity founded in 1897 at Barnard College in New York City. It was established to promote sisterhood, scholarship, and service among its members. AOII is one of the oldest sororities in the United States and is recognized for its commitment to philanthropy, particularly in support of arthritis research and education. The organization has grown significantly since its inception, with over 200 active chapters across North America and internationally. AOII emphasizes leadership development, academic excellence, and community involvement, providing members with opportunities to build lifelong friendships and enhance their personal and professional skills.