Pupusas were first created centuries ago by the Pipil tribes who inhabited the territory now known as El Salvador. Cooking implements for their preparation have been excavated in Joya de Cerén, "El Salvador's Pompeii", site of a native village that was buried by ashes from a volcano explosion, and where foodstuffs were preserved as they were being cooked almost 2000 years ago. The instruments for their preparation have also been found in other archaeological sites in El Salvador.