Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ruins of Loropéni' has mentioned 'Nigeria' in the following places:
Occurrence Sentence Text Source
Loropxc3xa9ni, given its size and scope reflects a type of structure quite different from the walled towns of what is now Nigeria, or the cities of the upper reaches of the river Niger which flourished as part of the empires of Ghana, Mali and Songhai.