In the middle of the Bronze Age, around 1000 BC, the amount of metal objects increased dramatically in the Baltic Sea region. Around the same time, a new type of stone monument, arranged in the form of ships, started to appear along the coasts. New research from the University of Gothenburg, Sweden shows that the stone ships were built by maritime groups.
The maritime groups were part of a network that extended across large parts of northern Europe. The network was maintained largely because of the strong dependence on bronze.
Archaeologists have long assumed that bronze was imported to Scandinavia from the south, and recent analyses have been able to confirm this notion. Read more.