Well, they did change history....as we know it. Think of this though......if something like that were true, as in, Caesarion was Pullo's child, the scholars who record history would have never known about it. Of course I know the show is fiction, but don't you think that history is probably littered with instances where the "official" word is that something happened one way when it really happened another. We are all taught that Charles Darwin came up with the theory of evolution, that Thomas Edison invented the light bulb, that the Magna Carta was written in 1200(??) something by Parliment....what Darwin had a good friend who came up with those theories, wrote them in a diary, died, and Darwin stole this ideas. What if, what if, what if....Now, I'm not going to go around saying that history is wrong, but, it does stop and make you think sometimes.