Pythagoras
We are sure that you learned the theorem named for this guy back in geometry class. Who would have thought that the existence of Pythagoras would also be called into question? The truth is that historians have not found proof of his writings. That is why they do not think it is right to give him credit for the theory we talked about. On top of that, they have doubts because of the time period that he was alive in. In those days, there were very few people involved in celestial spheres.
Moses
Save for the Bible, and you will not find much proof that Moses once roamed the planet. As a matter of fact, some historians say that there is far too much vagueness when it comes to the alleged timeframe. On the other hand, scientists have rational explanations for things that have been attributed to him. For example, there is a logical way to explain the story about the Red Sea parting.