Phidippĭdes in Harpers Dictionary of Classical Antiquities (1898)

or Philippĭdes (Φειδιππίδης, Φιλιππίδης). A courier was sent by the Athenians to Sparta in B.C. 490 to ask for aid against the Persians, and arrived there on the second day from his leaving Athens. On his return to Athens he related that on his way to Sparta he had fallen in with Pan on Mount Parthenium, near Tegea, and that the god had bid him ask the Athenians why they paid him no worship, though he had been hitherto their friend, and ever would be so. In consequence of this revelation they dedicated a temple to Pan after the battle of Marathon, and honoured him thenceforth with annual sacrifices and a torch-race (Herod.vi. 105; Pausan. i. 28, 4).

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