A new infographic ranks Roman emperors by the length of their reigns. Topping the list is Augustus, who ruled for 40 years and 7 months. He is followed by Antoninus Pius (22 years, 6 months), Tiberius (22 years, 5…



Augustus was the founder of the Roman Empire and its first emperor, ruling from 27 BC until his death in AD 14, and he is remembered as one of the most consequential statesmen in Western history.