Ratdolt's version of Euclid was the medieval version of Campanus of Novara, based on the Latin translation of Adelard of Bath. The earliest surviving manuscript of this version dates to 1259; "the additiones Campanus made to his basic Euclidean text are particularly notable. With an eye to making the Elements as self-contained as possible, he devoted considerable care to the elucidation and discussion of what he felt to be obscure and debatable points. He also attempted to work Euclid more into the current of thirteenth-century mathematics by relating the Elements to, and even supplementing it with, material drawn from the Arithmetica of Jordanus de Nemore" (DSB IV, p.446).
Leonardus Achates from Basel was the first printer in Vicenza, where he began work in 1474 after printing in nearby Sant'Orso and Padua. It is one of two books he is known to have printed in association with Guilielmus de Papia.
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