In 1920, the Italian scholar Isidoro del Lungo (1841-1927) pointed out (1) that nowhere else had a "Salvino degli Armati" been credited with being the inventor of eyeglasses, (2) that in the 14th century, the epitaph would have read ""le" peccata", not ""la" peccata", and most importantly, (3) that the term "inventor" did not exist in the Florentine vernacular during the 14th century.