Histories
Herodotus
Herodotus. Godley, Alfred Denis, translator. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1920-1925 (printing).
North of the Royal Scythians live the Blackcloaks, who are of another and not a Scythian stock; and beyond the Blackcloaks the land is all marshes and uninhabited by men, so far as we know.