Evidence from Bhimbetka rock shelters suggest mounts were used at least 10,000 BCE. facets of 3 mm or more were found on seven horse premolars in two sites, Botai and Kozhai 1, dated about 3500–3000 BCE.[2][3] It is theorized that people herding animals first rode horses for this purpose, presumably bareback, and probably used soft materials such as rope or possibly bone to create rudimentary bridles and hackamores.[4] However, the earliest definitive evidence of horses being ridden dates to art and textual evidence dating to about 2000-1500 BCE.[5]