When the West Penn Square Seminary for Young Ladies opened in Philadelphia on September 22, 1869, a young headmistress named Agnes Irwin was determined to turn it into an institution of academic excellence.
ow, 150 years later, The Agnes Irwin School continues Miss Irwin's vision by providing a rigorous, all-girls' education that has produced a legacy of inspiring women for generations. Our landmark anniversary has something for everyone — engaging speakers, inspiring conferences, unforgettable parties — and will be one for the history books! Check back often to learn more about our celebration of 150 years of empowering girls, and inspiring women!
We've been empowering girls since 1869. Browse through Agnes Irwin's history — from the early days in Center City, to our beautiful 26-acre campus in Rosemont — and meet a few of the notable women who have walked our halls along the way.
150th Celebration Events
Sesquicentennial Events Postponed
Regional Events Postponed
Let's keep the momentum going all year long — participate in two great programs that will connect you with your fellow Owls and make a difference in the community in which you live. Learn more here.
Shop Commemorative Merchandise
Our new AIS Shop features 150th commemorative merchandise and AIS swag. Now it's easier than ever to represent the Blue and Gold!
The co-chairs of Agnes Irwin's Sesquicentennial Celebration, along with the chairs of our regional and on-campus events, are hard at work behind-the-scenes! Please email AIS150@agnesirwin.org with any questions regarding our events or ways you can get involved!