Agriculture was Portugal's main activity, with produce mostly consumed internally. Wine and dried fruits from the Algarve (figs, grapes, and almonds) were sold in Flanders and England, salt from Setúbal and Aveiro was a profitable export to northern Europe, and leather and kermes, a scarlet dye, were also exported. Industry was minimal, and Portugal imported armor and munitions, fine clothes, and several manufactured products from Flanders and Italy. Since the 13th century, a monetary economy had been stimulated, but barter still dominated trade, and coinage was limited; foreign currency was also used until the beginning of the 15th century.