I hereby renounce my previous position that Olinto de Pretto, a Northern Italian, had derived the famed formula E=mc2. It turns out that Albert Einstein indeed deserves all the credit.
Originally I read a book by Umberto Bartocci that claimed de Pretto as a precursor to Einstein. Yet some years ago I got an Email from Professor Bartocci where he backed off such a claim. Hence, de Pretto should not get any credit and all credit and glory to Albert Einstein (I always said Einstein was indisputably a super-genius).
My bad. Einstein is now duly give credit as he always had in the past.