Histories
Herodotus
Herodotus. Godley, Alfred Denis, translator. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1920-1925 (printing).
Around it runs first a moat deep and wide and full of water, and then a wall eighty three feet thick and three hundred thirty three feet high. The royal measure is greater by three fingers' breadth than the common measure.[*](Common cubit, 18 1/4 inches : royal, 20 1/2.)