The ancient authors, Fray Martín de Murúa and Felipe Guaman Poma de Ayala make reference in their works to the different dances of the area, including the dance of the Llama llama, name given by the Aymaras to refer to the Urus dressed as dancing demons, as it was recorded by Ludovico Bertonio. This dance was performed during the Ito festivities by the representatives of the region known as Urucolla, a sub-region of the south-eastern suyu of Collasuyu located in the lake system of the Department of Oruro between the basins of the lakes Poopó and Coipasa, where the Uru civilization had the city of Oruro as their main social centre, becoming together with Nazca and Wari one of the most ancient cities in the Andean world.[1][16]