Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Hanseatic Town of Visby' has mentioned 'Viking' in the following places:
Occurrence Sentence Text Source
Roads into the town through gates to the north, east and south, leading from the cliff to the harbour, date to the Viking era.
A large amount of small vernacular wooden houses from the 18thxc2xa0and 19th centuries featuring horizontal plank construction used since the Viking period remain intact.
The irregular street pattern and entry roads run from the cliff to the harbour, some with origins in the Viking era settlement.