Most history is based on interpretation of what information remains available to those writing it and that sadly as we prove every day on these message boards differs hugely!
Interpretation of "history" is being re-written all the time usually to simply support theories and ideologies.
Typically people believe what they want to believe and then get defensive and become angry,sarcastic or aggressive IF they are wrong but are too stubborn to admit it and simply become more convinced wrong is right and reinforce their beliefs even more.