Celebrated in Oruro, the folklore capital of Bolivia, the carnival marks the Ito festival for the Uru people. Its ceremonies stem from Andean customs, the ancient invocations centreing around Pachamama (Mother Earth, transformed into the Virgin Mary due to Christian syncretism) and Tio Supay (Uncle God of the Mountains, transformed into the Devil). The native Ito ceremonies were stopped in the 17th century by the Spanish, who were ruling the territory of Upper Peru at the time. However, the Uru continued to observe the festival in the form of a Catholic ritual on Candlemas, in the first week of each February. Christian icons were used to conceal portrayals of Andean gods, and the Christian saints represented other Andean minor divinities. The ceremony begins forty days before Easter.