Occurrence of Attributes in Original Text

The text related to the cultural heritage 'State Historical and Cultural Park “Ancient Merv”' has mentioned '7th century' in the following places:
Occurrence Sentence Text Source
Built in the 7th century BC Erk Gala was built as a Persian Style fortress controlling the oasis on the Murghab River.
7th century Great Ice House, Merv
Shaim Kala was built in the 7th century AD.