House of Representatives passes resolution to end joint occupation of Oregon Territory
Congressman Robert C. Winthrop famously invoked "the right of our manifest destiny to spread over this whole continent" in a debate preceding a House vote to end the joint Anglo-American occupation of the Oregon Territory. (By Matthew Pinsker)
Source Citation
Arthur M. Schlesinger, Jr., ed., The Almanac of American History (New York: Barnes & Noble Books, 1993), 250.