Julio César Morales Zambrana, researcher and scholar of the mining culture of Potosí, has addressed in his work the figure of the Uncle, a deity feared and venerated inside the mines of the CJulio César Morales Zambrana, researcher and scholar of the mining culture of Potosí, has addressed in his work the figure of the Uncle, a deity feared and venerated inside the mines of Cerro Rico. Their study, published in El Potosí on February 5, 2016, exposes the origin and evolution of this belief, linking it to pre-Columbian myths and the imposition of Christianity in colonial times.