Native traditions of classical performing arts include "koodiyattom", a form of Sanskrit drama or theatre and a UNESCO-designated Human Heritage Art. Kathakali (from "katerumbu" ("story") and "kali" ("performance")) is a 500-year-old form of dance-drama that interprets ancient epics; a popularized offshoot of "kathakali" is "Kerala natanam" (developed in the 20th century by dancer Guru Gopinath). Meanwhile, "koothu" is a more light-hearted performance mode, akin to modern stand-up comedy; an ancient art originally confined to temple sanctuaries, it was later popularized by Mani Madhava Chakyar. Other Keralite performing arts include "mohiniyaattam" ("dance of the enchantress"), which is a type of graceful choreographed dance performed by women and accompanied by musical vocalizations. "Thullal", "Thirayattam", "padayani", and "theyyam" are other important Keralite performing arts. Thirayattam is one of the most outstanding Ethnic art of Kerala. This vibrant ritualistic annual performing art form enacted in courtyards of "Kaavukal"(sacred groves) and village shrine.