Josephus, before becoming the great Jewish historian of the first century, led Jewish rebels against the Romans in defense of Jerusalem. But after the battle was lost, he surrendered to the Romans and won the favor of Rome, living out the rest of his life there as a successful writer. His story has led many to see him as a traitor to his people and his work as thinly disguised Roman propaganda. William den Hollander argues that this reading is mistaken (free registration required):
More about: Ancient Rome, Josephus, Judean Revolt