^"The most likely date for Philolaus' birth would then appear to be around 470, although he could have been born as early as 480 or as late as 440. He appears to have lived into the 380s and at the very least until 399." Carl A. Huffman, (1993) Philolaus of Croton: Pythagorean and Presocratic, pages 5-6. Cambridge University Press
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