Skip to content ↓

Please note:

The MIT Welcome Center and Admissions Office will be closed for winter break December 23 through January 4. We will reopen on Monday, January 5, 2026.

Why is it called the Brass Rat?

It’s the goal of every incoming student at MIT to get their own Brass Rat—MIT’s version of a class ring. The phrase “Brass Rat” is derived from the alleged resemblance of the brass beaver featured on the ring to a rat.