The Histories · 4.43

Thus was this country first known to be what it is, and after this it is the Carthaginians who make report of it; for as to Sataspes the son of Teaspis the Achaimenid, he did not sail round Libya, though he was sent for this very purpose, but was struck with fear by the length of the voyage and the desolate nature of the land, and so returned back and did not accomplish the task which his mother laid upon him. For this man had outraged a daughter of Zopyros the son of Megabyzos, a virgin; and then when he was about to be impaled by order of king Xerxes for this offence, the mother of Sataspes, who was a sister of Dareios, entreated for his life, saying that she would herself lay upon him a greater penalty than Xerxes; for he should be compelled (she said) to sail round Libya, until in sailing round it he came to the Arabian gulf. So then Xerxes having agreed upon these terms, Sataspes…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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