A large-scale migration of federated Amorite tribes,…

A large-scale migration of federated Amorite tribes, likely triggered by the twenty-second century BCE drought, infiltrates Mesopotamia from the west from the twenty-first century BCE, resulting in the occupation of Babylonia proper, the mid-Euphrates region, and Syria-Palestine.

They set up a mosaic of small kingdoms and rapidly assimilate the Sumero-Akkadian culture.

They are one of the instruments of the downfall of the Sumerian Third Dynasty of Ur, and acquiring a series of powerful kingdoms, culminate in the triumph under Hammurabi of Babylon.