Truso, situated on Lake Drużno, was an Old Prussian ( Pomesanian) town near the Baltic Sea just east of the Vistula River. It was one of the trading posts on the Amber Road, and is thought to be the antecedent of the city of Elbląg (Elbing). In the words of Marija Gimbutas, "the name of the town is the earliest known historically in the Baltic Sea area". The main export goods of Truso were amber, furs, and slaves, while blacksmithing and amber working were the major industries. The beginnings of the town can be dated back to approximately the end of the 8th century, while in the second half of the 10th century, the town declined and was eclipsed as a trade center by nearby Gdańsk.