LSE702652 Ancient Alphabets, from the \'L\'Encyclopedie\' by Diderot and d\'Alembert (litho) by French School, (18th century); Musee des Arts Decoratifs, Paris, France; (add.info.: Denis Diderot (October 5, 1713 ??July 31, 1784) was a French philosopher, art critic, and writer. He was a prominent person during the Enlightenment and is best known for serving as co-founder and chief editor of and contributor to the Encyclop矇die along with Jean le Rond d\'Alembert.); Photo 穢 Leonard de Selva; French, out of copyright.