At the request of Msgr. Stephen Stepanian, then Pastor of St. Marks Armenian Catholic Church in Philadelphia, the Congregation of the Armenian Sisters of the Immaculate Conception sent three energetic nuns, Sister Valentine, Sister Hripsime and Sister Arousiag, to establish an Armenian day school.
The Armenian day school, the first of its kind on the East Coast of the U.S., was started in a two-room facility with an initial enrollment of 12 preschool/ kindergarten children.
An ecumenical Board of Directors was formed bringing together leaders from the Philadelphia area generating overwhelming financial and moral support for the school.
Between 1967 and 1975 a grade was added each year, and the enrollment grew to 165 students. The school was relocated three times to accommodate its growing needs. In October of 1975 to accommodate the student body, the doors of the permanent home of the Armenian Sisters Academy opened in Radnor, PA.
After several years of planning, a new 24,000 square foot expansion and renovation project was completed adding increased classroom space, state of the art science and computer labs, an art room, an infirmary, a learning resource center, a new library, and cafeteria. The most significant addition was the Hovsepian Activity Center providing the students with a gymnasium and stage for performances.