“ It soon acquired a considerable trade, and joined the Hanseatic League. During the 13th, 14th and 15th centuries it was repeatedly burned by its hostile neighbours, the Lithuanians and Poles, and in the 17th century it remained for some time in the possession of Sweden. In 1757, and again in 1813, it was occupied by Russian troops. After the battle of Jena, King Frederick William III. retired to Memel; and here, in 1807, a treaty was concluded between England and Prussia. ”