IX. In the 9th century, Santok ceased to be a seasonal settlement – a hillfort was built here. It was located on the border of two regions: Pomerania and Great Poland, which was of great importance for the history and role of this place. Santok became a center of trade and crossing on the route followed by merchants on their further journey – inland and to other places. It could have been a service point on the navigable route, where repairs were made or supplies were replenished. In the stronghold, trade was carried out – goods and services were exchanged. Itinerant craftsmen could come here to make their products on the spot and look for buyers for them. The development of Santok was closely related to the economic situation of the main centers in the Baltic economic zone, e.g., housing estates in Wolin and Szczecin.