The Newton Leibniz dispute is famous. There is no way divinvi invented calculus because it itself was dependent on certain recent advances in math and notation. Saying there is X, even if that is true and I am not aware that it is, is far far different than proving it is true mathematically, quantifiying it and then using that development to prove that it appiles to everything from planets to apples, not to mention the notations and proofs. If davinci had done this, he'd have told people and used it.

Davinci was great. Sure he was. But anyway the pointof myu post was not to examine far off theories about Newton's relatve contributions. Peace/.