Original sentence: The Oregon boundary dispute (often called the Oregon question) arose as a result of competing British and American claims to the Pacific Northwest of North America known from the British perspective as the Columbia District, a fur-trading division of the Hudson's Bay Company and from the American as the Oregon Country
Edited sentence: The Oregon boundary dispute (often called the Oregon question) arose as a result of competing British and American claims to the Oregon Country, a region of northwestern North America known also from the British perspective as the Columbia District, a fur-trading division of the Hudson's Bay Company