The first war machines
In the southern Ural steppes, archaeological sites of the Sintashta culture hold the earliest known evidence of the spoked-wheel chariot. Radiocarbon dating places these finds to between 2050 and 1750 BCE. This technology appears here centuries before its documented use in the Near East. The burials, located in earthen mounds called kurgans, contain the chariots with their wheels placed in pits on the grave floor. These vehicles were lightweight, featuring a track width of 1.2 to 1.5 meters and wheels with 8 to 12 spokes.
The graves belong to the Sintashta people, a society that flourished from approximately 2200 to 1800 BCE. They constructed fortified settlements, a new development for the steppe region. The type site, Sintashta, was a circular settlement roughly 140 meters in diameter, enclosed by a timber-reinforced earthen wall and a deep ditch. Within the walls of settlements like Sintashta and Arkaim, evidence of intensive copper and arsenical bronze production was found in every excavated house. This industrial-scale metallurgy supplied metal to urban centers in Central Asia, such as the Bactria-Margiana Archaeological Complex (BMAC).