This criterion is very important. It points out how human norms and conventions differ within the ritualised behaviours present in nonhuman primates. Many authors have described attainable iconographical influences from Mesopotamia into the Indus Valley.[98] Gregory Possehl notes "Mesopotamian themes in Indus iconography", notably models relevant to the Gilgamesh epic, https://medium.com/@spoilmevintagediy/the-rich-history-of-beadwork-a-journey-through-the-ages-4e4fd2e474cf