The most famous of all the war-dances of antiquity, is said to have received its name from one Pyrrichos, or, according to others, from Pyrrhus or Neoptolemus, the son of Achilles. Critical scholars, however, content themselves with a general inference deduced from the substantial harmony of the various mythical or legendary accounts given of its origin, that it was a Doric invention. - Chambers, 1881