Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Humberstone and Santa Laura Saltpeter Works' has mentioned 'Peru' in the following places:
Occurrence Sentence Text Source
In 1872, the Guillermo Wendell Nitrate Extraction Company founded the saltpeter works of Santa Laura, while the region was still a part of Peru.
In the same year, James Thomas Humberstone founded the "Peru Nitrate Company", establishing the works of "La Palma".
In this area, workers, drawn from Chile, Peru and Bolivia, to this hostile environment, lived in company towns and forged a distinctive communal Pampinos culture, manifest in their own rich language, creativity, and solidarity, and above all in pioneering struggles for social justice, that had a profound impact generally on social history.