Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Capital Cities and Tombs of the Ancient Koguryo Kingdom' has mentioned '7th century' in the following places:
Occurrence Sentence Text Source
Located in northeast China, the Capital Cities and Tombs of the Ancient Koguryo Kingdom dating from the 1st century BCE to the 7th century CE comprise archaeological remains of three cities and 40 tombs: Wunu Mountain City in Huanren Manchu Autonomous County, Liaoning Province; Guonei City, Wandu Mountain City, and the 40 tombs in Jixe2x80x99an municipality, Jilin Province.