^Carl Huffman. Alcmaeon. Stanford Encyclopedia of Philosophy (Metaphysics Research Lab, Stanford University). 2017.
^"There is disagreement about the date of his birth: Aristotle says that "Alcmaeon of Croton lived when Pythagoras was old," [Metaphysics, 1, v, 30, 986a] but it would appear that the passage is interpolated. Diogenes Laertius states that he was a disciple of Pythagoras, [viii. 83] and this could have been possible if we assume that the latter died about 490 and that Alcmaeon was born about 510 BC." Plinio Prioreschi, (1996), A History of Medicine: Greek medicine, page 167.