Before revision: Although trading alliances in the region were forming as early as 1157, the town of Lübeck did not form an alliance with Hamburg (which controlled access to salt routes from Lüneburg) , until 1241.
After revision: Although trading alliances in the region were forming as early as 1157 the town of Lübeck did not form an alliance with Hamburg (which controlled access to salt routes from Lüneburg) , until 1241.