News Archaeology The Yamnaya may have been the world’s earliest known horseback riders Excavated human skeletons indicate that the Yamnaya rode horses around 5,000 years ago Several skeletons from the ancient Yamnaya people, including the one shown here, bear signs that they may have ridden horses around 5,000 years ago, a new study suggests. That would make them the earliest known horseback riders. Michał Podsiadło Share this:EmailFacebookTwitterPinterestPocketRedditPrint By McKenzie Prillaman March 3, 2023 at 2:00 pm WASHINGTON — The tale of the first horseback riders may be written on the bones of the ancient Yamnaya people.