Ekeko is the Aymara god of abundance, prosperity and good luck, depicted as a small, smiling, hump-backed man laden with household provisions. His worship is traced by archaeologists to phallic hump-backed effigies of the Tiwanaku culture around Lake Titicaca, and several colonial and modern writers, following Bertonio, have identified him with the older deity Thunupa. Today he presides over the annual Alasitas fair of La Paz, where believers buy miniatures of the goods and fortunes they hope to obtain in the year ahead.