The irruption of the Indo-Europeans into history is marked by terrible destruction. Between 2300 and 1900 B.C. in Greece and Asia Minor many cities are sacked and burned; for example, Troy (about 2300 B.C.), Beycesultan, Tarsus, and some three hundred cities and villages in Anatolia. The documents mention ethnic groups named Hittites, Luwians, and Mitanni. But Āryan-speaking elements are also attested in other bodies of invaders.
