The largest of these cities was Shimao. Founded about 4,300 years ago, Shimao was only inhabited for 300 years. In the ruins of this ancient stone town, archaeologists made a grisly discovery of over 80 human skulls—with no bodies in sight. The skulls were all of young women who died around 4,000 years ago. Further examination of the skulls showed evidence of violent deaths involving blunt objects and fire. As to why so many young women were beheaded and buried in a mass grave, researchers believe that the girls were probably from enemy groups and sacrificed as part of ceremonies to mark the founding of the city.
https://listverse.com/2014/01/18/10-...man-sacrifice/