WASHINGTON — The tale of the first horseback riders may be written on the bones of the ancient Yamnaya people.
Five excavated skeletons dated to about 3000 to 2500 B.C. show clear signs of physical stress that hint these Yamnaya individuals may have frequently ridden horses, researchers reported March 3 at the American Association for the Advancement of Science Annual Meeting and in Science Advances. That makes the Yamnaya the earliest humans identified as likely horseback riders so far.
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Five thousand years ago, the Yamnaya migrated widely, spreading Indo-European languages and altering the human gene pool across Europe and Asia (SN: 11/15/17; SN: 9/5/19). Their travels eventually stretched from modern-day Hungary to Mongolia, roughly 4,500 kilometers, and are thought to have taken place over only a couple of centuries.
“In many ways, [the Yamnaya] changed the history of Eurasia,” says archaeologist Volker Heyd of the University of Helsinki.
Horse domestication became widely established around 3500 B.C., probably for milk and meat (SN: 7/6/17). Some researchers have suggested the Botai people in modern-day Kazakhstan started riding horses during that time, but that’s debated (SN: 3/5/09). The Yamnaya had horses as well, and archaeologists have speculated that the people probably rode them, but evidence was lacking.
But the oldest known depictions of horseback riding are from about 2000 B.C. Complicating efforts to determine when the behavior emerged, possible riding gear would have been made of long-decayed natural materials, and scientists rarely, if ever, find complete horse skeletons from that time.
Heyd and colleagues weren’t seeking evidence of horsemanship. They were working…
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