Julian the apostate, a Roman emperor from the 4th century that tried to reverse back from Christianity to paganism, which is exactly what a time traveler Roman weebo would do. Also, there is the famous incident of his death, which was caused by a spear injury in a battle, which he took because he forgot to put on his breastplate before the battle started. Something clearly done by a time traveler who is not familiar with the world around him/a time traveler trying to conceal his journey back to his own time.
Nothing can convince me that he was not.
Nothing can convince me that he was not.