Oregon Country 1848
March 14, 2025
File:Oregon Territory 1848.svg - Wikimedia Commons August 14, 1848: U.S. establishes the Oregon Territory | KPIC Establishing Borders: The Expansion of the United States, 1846-48 Oregon Country 1848
March 14, 2025
File:Oregon Territory 1848.svg - Wikimedia Commons August 14, 1848: U.S. establishes the Oregon Territory | KPIC Establishing Borders: The Expansion of the United States, 1846-48 Oregon Country 1848