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In page Huaco (pottery):

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Since the time of the Spanish conquest of Peru, these types of pieces have been found in pre-Columbian sites like temples, graves and burials, as well as other kinds of ruins. These sites, especially if they are of a sacred meaning, are called generic huaca or waqa in native Quechua, where it is likely that the figurines take their name. In Peru, a huaquero is a person that digs in ancient pre-Columbian ruins illegally in order to get valuable pieces of artwork, usually destroying the structure.