Heinrich Luden, a German historian, born at Loxstedt, near Bremen, April 10, 1780, died in Jena, May 23, 1847. He studied theology, history, and philosophy at Gottingen. In 1806 he became extraordinarv, and in 1810 ordina-ry professor at Jena. When a considerable part of Germany was under the rule of the French, Luden was among the first and most influential writers who stirred up the patriotic sentiments of the Germans. His historical publications are very numerous, including, besides biographies of Thomasius (Berlin, 1805), Hugo Grotius (1806), and Sir William Temple (Gottingen, 1808), Allgemeine Geschiclite der Volker vnd Staaten des Alterthums (Jena, 1814); Allgemeine Geschichte der Volker und Staaten des Mittelalters (2d ed., 1824); Die Geschiclite des deutschen Volkcs (12 vols., Go-tha, 1825-'37), which reaches only to 1237; and others. For four years (1814-18) he was the editor of the Nemesis, a journal devoted to politics and history, published at Weimar. A posthumous work, Ruckblicke in mein Lcben (Jena, 1847), contains many valuable notices of persons and events of his times.