Evidence for the largest single incident of mass child sacrifice in the Americas— and likely in world history—has been discovered on Peru's northern coast, archaeologists tell National Geographic. More than 140 children and 200 young llamas appear to have been ritually sacrificed in an event that took place some 550 years ago on a wind-swept bluff overlooking the Pacific Ocean, in the shadow of what was then the sprawling capital of the Chimú Empire. Scientific investigations by the international, interdisciplinary team, led by Gabriel Prieto of the Universidad Nacional de Trujillo and John Verano of Tulane University, are ongoing. The...