Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pre-Hispanic City of Teotihuacan' has mentioned 'Prior' in the following places:
Occurrence Sentence Text Source
[18] Teotihuacan was the largest urban center of Mesoamerica before the Aztecs, almost 1000 years prior to their epoch.
[42] This apparent regionally diverse population of Teotihuacan can be traced back to a natural disaster that occurred prior to its population boom.