A branch of the Semites who were nomads in the Syrian desert and who overthrew the Sumerian civilization of Ur c 2000 BC and dominated Mesopotamia, Syria, and Palestine till c 1600 BC. In the oldest cuneiform sources (c 2400-2000 BC), the Amorites were equated with the West, though their true place of origin was most likely Arabia, not Syria. They founded a series of kingdoms throughout Mesopotamia and northern Syria, the most important being Babylon and Assur. Their arrival in Palestine was at the change from Early Bronze to Middle Bronze Age. The Amorites became assimilated into the population and culture of these regions. Eventually, the Amorites settled and amalgamated with the Canaanites of the Middle and Late Bronze Age. During the 2nd millennium BC the Akkadian term Amurru referred not only to an ethnic group but also to a language and to a geographic and political unit in Syria and Palestine. In the dark age between c 1600-1100 BC, the language of the Amorites disappeared from Babylonia and the mid-Euphrates; in Syria and Palestine, however, it became dominant. In Assyrian inscriptions from about 1100 BC, the term Amurru designated part of Syria and all of Phoenicia and Palestine but no longer referred to any specific kingdom, language, or population.