Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Hanseatic Town of Visby' has mentioned 'Commerce' in the following places:
Occurrence Sentence Text Source
In 1411, the Norwegian, Danish and Swedish King Eric of Pomerania had the castle of Visborg constructed, and settled himself there for twelve years, during which the city virtually became a pirates' nest, and the commerce halted.
Not until the early 19th century did Visby once again attract commerce and a harbour industry.