A Century of Brotherhood at AO Chapter House – Save the Date!

The AO Chapter House, proudly standing since September 1925, holds a special place in history as the oldest continuously occupied single-fraternity Greek house at IU. Over the past 100 years, more than 2,700 AO brothers have called 1210 East 3rd home. It’s where we grew into men, shared countless moments—both unforgettable and unrepeatable—and, most importantly, built an unbreakable brotherhood.

Today, this tradition continues with 140 undergraduate brothers carrying forward our legacy. Now, it’s time to come together and celebrate the memories, friendships, and history that bind us.

Mark your calendars! Join us for the 100th House Anniversary Celebration on September 20, 2025. Full details and registration information will be shared soon, but make sure to reserve the date and recruit your brothers to attend. Together, we’ll honor our remarkable past and pave the way for the next century of AO brothers. Don’t miss this opportunity to return to the house that shaped us all!