Pythagoreanism to have survived as part of, or deeply influenced, the Bacchic cults and Orphism. Pythagoras was already in ancient times well known for the mathematical achievement of the Pythagorean theorem. Although the Babylonians had used this formula for centuries, Pythagoras had discovered that "in a right-angled triangle the square of the hypotenuse is equal to the squares of the other two sides". In ancient times Pythagoras was also noted for his discovery that music had mathematical foundations. Antique sources that credit Pythagoras as the philosopher who first discovered music intervals also credit him as the inventor of the monochord, a
Attentat (novel) absorption of a societal concept which has not yet been refuted? Some minor oversights are present in this work. One example is where the author writes, "the square of my hypotenuse was equal to the sum of my right angles," whereas the square of the hypotenuse should be equal to the sum of the squares of the two other sides. In another quote, "it was six o'clock in the morning in Japan therefore 2pm at Ethel's" is erroneous even if it is not specified whether she lives in France or Belgium We do know however that the location is in