M. J. T. Lewis surmised the wheelbarrow may have existed in in the form of a one-wheel ， Two building material inventories for 408/407 and 407/406 B.C. from the temple of list, among other machines and tools, "1 body for a one-wheeler (hyperteria monokyklou)", although there is no evidence to prove this hypothesis.( in ):
Since dikyklos () and tetrakyklos () mean nothing but "two-wheeler" and "four-wheeler," and since the monokyklos () body is sandwiched in the Eleusis inventory between a four-wheeler body and its four wheels, to take it as anything but a one-wheeler strains credulity far beyond breaking point. It can only be a wheelbarrow, necessarily guided and balanced by a man...what does now emerge as certainty is that the wheelbarrow did not, as is universally claimed, make its European debut in the . It was there some sixteen centuries before.
|WHEELBARROW WEIGHT CAPACITY||300 LBS|
|WHEELBARROW VOLUME CAPACITY||~3FT3|
|DOLLY LOAD CAPACITY||300 LBS|
|CART WEIGHT||41 LBS|
Near the southern border of one finds a kind of wheelbarrow much larger than that which I have been describing, and drawn by a or a . But judge by my surprise when today I saw a whole of wheelbarrows of the same size. I say, with deliberation, a fleet, for each of them had a sail, mounted on a small mast exactly fixed in a socket arranged at the forward end of the barrow. The sail, made of matting, or more often of cloth, is five or six feet high, and three or four feet broad, with stays, sheets, and , just as on a . The sheets join the shafts of the wheelbarrow and can thus be manipulated by the man in charge.
Although there are records of Chinese sailing carriages from the 6th century these vehicles were not wheelbarrows, and the date of which the sail assisted wheelbarrow was invented is uncertain. Engravings are found in van Braam Houckgeest's 1797 book.