Best graphic: T. gibbosula and C. rustica shells located in layer 4c in the cave in Morocco, which have been beads from what exactly is now often called the oldest jewelry on the globe. Source: A. Bouzouggar, INSAP, Morocco / 10 of the Strangest and many Uncertain Myths of Love https://medium.com/@spoilmevintagediy/the-rich-history-of-beadwork-a-journey-through-the-ages-4e4fd2e474cf