Herodotus tells us, that in the battles fought betwixt the Egyptians and the Persians, it was observed both by himself and by others, that of those who were left dead upon the field, the heads of the Egyptians were without comparison harder than those of the Persians, by reason that the last had gone with their heads always covered from their infancy, first with biggins, and then with turbans, and the others always shaved and bare. King Agesilaus continued to a decrepit age to wear always the same clothes in winter that he did in summer. Caesar, says Suetonius, marched always at the head of his army, for the most part on foot, with his head bare, whether it was rain or sunshine, and as much is said of Hannibal: