context: About 1856, he led his people in relocating to the Omaha reservation in what is now northeastern Nebraska.
source: LaFlesche served as principal chief until 1888.
reference_original: عمل LaFlesche بوظيفة الرئيس الرئيسي حتى عام 1888.
reference_flipped: عملت LaFlesche بوظيفة الرئيس الرئيسي حتى عام 1888.