Ancient Sumerian Petroglyph depicting Human Slaves & the Gods

We can first find records of slavery dating back to The Code of Hammurabi in Babylon in the 18 th century BCE, though it can be traced to almost every ancient civilization. Records from the Mycenaean period (Bronze Age) in Greece attest to how integral slavery was at the time. In fact, it is estimated that the majority of Athenian citizens owned at least one slave.