Convince my friend is an act to bring someone on your side.
For me, i just laid to you my source and proof and its up to you to accept it or not.
You're the one who will decide.
In this kind of discussion the more space you move the better to give your statement.
My statement about great flood is from the bible, I just used the other reference or physical evidence for those who can't accept or doubted the evidence from the bible.
Peace!