The Nuttall Encyclopedia
E . four hundred), a term employed by the Italians to signify one thousand four hundred, that is, the 15th century, and applied by them to the literature and art of the period.
Wood, James, ed. Entry for 'Quatro Cento'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/q/quatro-cento.html. Frederick Warne & Co Ltd. London. 1900.