Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Birka and Hovgården' has mentioned 'Commerce' in the following places:
Occurrence Sentence Text Source
On this anchorage, being the best sheltered within the maritime region of Sweden (Suevoniae), all the ships belonging to Danes (Danorum) known as Norwegians (Nortmannorum) as well as to Slavs (Sclavorum), Sembrians (Semborum) and other Scythian (Scithiae) peoples use to convene every year for sundry necessary commerce.