<a href="https://www.snopes.com/fact-check/railroad-gauge-chariots/" rel="nofollow">https://www.snopes.com/fact-check/railroad-gauge-chariots/</a><p>> What's True<p>> The standard U.S. railroad gauge is similar in width to the wheel spacing of Roman chariots.<p>> What's False<p>> That similarity is based much more on coincidence and inherent physical limitations than a direct line of imitation.