Empowering girls. Inspiring Women.

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!

150th Celebration Events

On-Campus Events

Agnes Irwin has been empowering girls and inspiring women since 1869 — we invite you to celebrate with us throughout the year on our Rosemont campus!  

Founder's Day Weekend
September 20-22, 2019

 Discovering Your Purpose Conference
October 12, 2019

 Forevermore: A Tribute to Faculty & Staff
March 18, 2020

 Alumnae Weekend & Closing Ceremonies
May 1-3, 2020

Regional Events

It's going to be an incredible year — and we are celebrating with fellow Owls in cities across the country!  

Celebrating the 150th Throughout 2019-2020

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.

Stay Tuned!

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! We will have more announcements on inspiring speakers, details on each event, and a special store dedicated to commemorative AIS 150th swag that will be the talk of the town. Please email AIS150@agnesirwin.org with any questions along the way.

The love we bear for thee is love that hath no end.