Koodiyattam, a traditional Sanskrit performing art dance form of Kerala, is recognized by UNESCO as a 'Masterpiece of the Oral and Intangible Heritage of Humanity.' It dates back to 2000 years and is said to be the oldest living theatre tradition globally. UNESCO usually only considered monuments and heritage sites, and this was the first art form recognized for its exceptional value. Mizhavu, a large percussion instrument, is the main musical instrument accompanying Koodiyattam. Considered sacred, Koodiyattam was traditionally performed in temple theatres (Koothambalam).