Orange & Black Day: October 22, 2026

O&B Day 2026: Students enjoying birthday cake

Thank you for celebrating Orange & Black Day!

Orange & Black Day was a spectacular way to bring the 200th anniversary of the Alumni Association to an epic finale. Keep on posting and don’t forget to tag @PrincetonAlumni and #OrangeAndBlack.

Watch the Video

Orange & Black Day celebration in Nairobi

Orange & Black Day Photoboard

280 years of the Best Old Place of All and 200 years of an Alumni Association like no other. See how Princetonians around the world celebrated these two historic milestones.

View the Orange & Black Day Photoboard

Members of the Princeton Alumni Association of New Orleans gather in orange and black

Events

The history of Orange & Black Day

While Oct. 22 has always been a significant University date that marks the 1746 signing of its charter, the day became a “birthday” celebration around the world when alumni created Orange & Black Day.

Show Your Pride

Follow @PrincetonAlumni on Instagram, Facebook and Twitter for Orange & Black Day and for news and events all year long!

Charter Day

Princeton’s charter was granted to the University on Oct. 22, 1746 when it was still known as the College of New Jersey. This year marks the University’s 280th birthday. Let’s celebrate #OrangeAndBlack!

Fun Facts about Charter Day

Princeton Club of Hawaii Orange & Black Day 2024

Let’s get this party started

Planning an Orange & Black Day gathering with fellow Tigers from your region, class or affinity group? Check out some helpful tips for planning your event below.

Plan Your Orange & Black Day Gathering

Virtual Party Pack

Enhance your Orange & Black Day festivities with food and fun and plenty of inspiration — curated by your fellow alumni — to celebrate the Best Old Place of All!

Open up the Toolkit