Answer:
Cylinder seals
Step-by-step explanation:
The human species originated in Africa around 300,000 years ago, but the first civilization that modern archaeologists have discovered was located in Sumer, Mesopotamia, around 10,000 BC.
Mesopotamians invented agriculture, writing, art, culture and trade. One of the ways to control goods produced and traded was to trademark them with cylinder seals specially to mark items on clay. They used clay a lot, for writing, pottery and construction.