Giaeomo Maria Carlo Denina, an Italian historian, born at Revello, Piedmont, Feb. 28, 1731, died in Paris, Dec. 5, 1813. He took holy orders, acted as professor at Pinerolo and Turin, and was subjected to persecutions on the part of the Jesuits. About 1782 he went to Berlin, in compliance with an invitation of Frederick the Great, and wrote there his Rivoluzioni della Germania (8 vols., Florence, 1804), several works on North German literature (in French), and an effusion in praise of Peter the Great (La Russiade, Berlin, 1790). While at Mentz in 1804 he was introduced to Napoleon, to whom he dedicated his Clef des langues (Berlin, 1804), and who shortly afterward appointed him imperial librarian at Paris. Denina wrote many other literary, critical, and historical works; but his literary fame rests chiefly upon his Istoria delle rivoluzioni d' Italia (3 vols., Turin, 1769-'70; best edition, Milan, 1820; translated into several European languages), which contains a general history of that country from the time of the Etruscans. He left in manuscript three volumes of a history of Piedmont, which have not been published in Italian, but have appeared in German.