Archaic Greek trade: three conjectures
Not much attention is given to the diolkos across the Isthmus of Corinth, nor is much known about it. There are a dozen or so explicit or probable references to it in ancient literature, one relevant inscription and some remains of its track. The remains, principally at the west and close to the modern canal, are from a paved roadway with two parallel channels about 1·50 m apart, evidently to hold the wheels of some sort of carrier; and associated pottery and inscribed letters suggest that it was constructed in the late seventh or early sixth century B.C. The written references tell us that the eastern end of the diolkos was at Schoinos, that it was said to be 40 stades long, that warships were transported across the Isthmus in 412, 220, 217, 102 and 30 B.C., that the diolkos was in use in the early period of the Roman Empire, and that some ships were too big for it: there is, though, no precise statement of the commercial use of the diolkos.Yet transport of warships is not likely to have been the normal use of the diolkos: ancient historical writers were more interested in war than commerce, and warships cannot have needed transporting very frequently.