Baltic maritime trade (c. 1400–1800)
Baltic maritime trade began in the Late Middle Ages and continued to develop into the early modern period. During this time, ships carrying goods from the Baltic and North Sea passed along the Øresund, or the Sound, connecting areas like the Gulf of Finland to the Skagerrak.
Source: Wikipedia — Baltic maritime trade (c. 1400–1800) (CC BY-SA 4.0)