Oruro, Bolivia: Its earliest record found in pre-Hispanic times, the dance of "Llama llama"in worship of the Uru god Tiw, dance subsequent ironically devoted Aymara language of the Urus dance dressed as devils, as recorded by Ludovico Bertonio. Ethnohistorical development process of disguise and the dance of Diablada fall into three periods, according to the document sent by Carnaval de Oruro to the Organization of the United Nations Educational, Scientific and Cultural Organization (Unesco) proclaimed as one of the Masterpieces of the Oral and Intangible Heritage of Humanity: Periods of 1606 to 1789, 1789 to 1944 y 1944 to 1960.