The Dance of the Drums of Drametse, also known as Drametse Ngacham, is a popular mask dance performed throughout Bhutan. It was first introduced in the sixteenth century by Khedup Kuenga Wangpo, son of Terton Pema Lingpa. It is a unique Bhutanese cultural expression and reflects the cultural and spiritual identity of Bhutan. Until the late nineteenth century, the dance remained confined to the Drametse community under the patronage of Thegchog Ogyen Namdroel Choeling. Later it was introduced to other parts of the country. Today, Drametse Nagacham is performed in almost all local festivals and celebrations. In November 2005, at the Third Proclamation of Masterpieces of the Oral and Intangible Heritage of Humanity, UNESCO proclaimed it a Masterpiece.