The Earth Monster, the most sought-after Olmec jewel, has returned to Mexico after spending at least 50 years on the U.S. border.

The archaeological piece will be exposed from this Thursday at the Regional Museum of the Peoples of Morelos (Palacio de Cortés) Later, and although they have not marked the dates on the calendar, it will be returned to the archaeological zone of Chalcatzingo (Morelos) "From where it should never have left," says the director of the National Institute of Anthropology and History.