Ringling Bros. and Barnum & Bailey Clown College

Ringling Bros. and Barnum & Bailey Clown College was an American circus school which trained around 1,400 clowns in the "Ringling style" from its founding in 1968 until its closure in 1997.

Source: Wikipedia — Ringling Bros. and Barnum & Bailey Clown College (CC BY-SA 4.0)