Reginald Walter Macan, Herodotus: The Seventh, Eighth, & Ninth Books with Introduction and Commentary book 7, chapter 224 It is possible that the Athenian legend of Marathon had associated the long sword with that victory before the story of Thermopylai was garnered by Hdt., or even before the battle of Thermopylai was fought (cp. 9. 27, where, however, the claymore has not yet appeared); or it is possible that the legends of Marathon and of Thermopylai were developed in rivalry with each other, and that Aristophanes (Knights 781 ff. (21.40)
Sir Philip Sidney, Defence of Poesie paragraph 19 His vertue is excellent in the dangerlesse Academy of Plato: but mine sheweth forth her honourable face in the battailes of Marathon, Pharsalia, Poietiers, and Agincourt. (2.63)
London: Volume 2 (ed. Charles Knight) chapter 12, page 183 Even thus, as still the blue Aegean tumbles among its sunny isles, did the Ocean, from childhood to blind old age, paint itself to the mind of Homer; even as at this day the mountains look on Marathon, and Marathon looks on the sea, did that scenery send down its melancholy grandeur into the eyes and the souls of Miltiades and his little host encamped there three-and-twenty centuries ago. (3.48)