The Histories · 4.101

Scythia then being looked upon as a four-sided figure with two of its sides bordered by the sea, has its border lines equal to one another in each direction, that which tends inland and that which runs along by the sea: for from Ister to the Borysthenes is ten days' journey, and from the Borysthenes to the Maiotian lake ten days' more; and the distance inland to the Melanchlainoi, who are settled above the Scythians, is a journey of twenty days. Now I have reckoned the day's journey at two hundred furlongs: and by this reckoning the cross lines of Scythia would be four thousand furlongs in length, and the perpendiculars which tend inland would be the same number of furlongs. Such is the size of this land.

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