Important tell site near Kashan on the plateau of Iran with a six major phases from the Neolithic to the Iron Age. They are: I, dating to the 6th-5th millennia BC, a simple village of recently settled farmers who used pottery painted with basketry designs and copper only in the form of hammered ornaments; II, a village of mudbrick architecture with very fine pottery elaborately painted with stylized animals; III, pottery made by wheel and kiln and more use of copper; IV, around 3000 BC, the site fell under the influence of Susa and Mesopotamia, the painted ware replaced by monochrome gray or red, much jewelry, and the introduction of proto-Elamite writing. This phase was followed by a break in occupation and the resettlement - represented in cemetery A - is often attributed to intruders from the northeast, who are thought to have been responsible for the introduction of Indo-European languages to this area. The final occupation of Tepe Sialk, represented in cemetery B and dated to the late 2nd-early 1 millennium BC, saw the first use of iron. Around 9th-8th century BC, the site was destroyed and abandoned.