How the Oregon Trail and Treaties Shaped the American West

Miacademy & MiaPrep Learning Channel

This educational video explores the history of United States expansion into the Oregon Country and the development of major overland trails during the mid-19th century. It details the progression from early exploration by Lewis and Clark to the economic activities of fur traders and mountain men, which paved the way for mass migration. The narrative explains the geopolitical tensions between the United States and Great Britain, culminating in the Oregon Treaty of 1846 which established the 49th parallel boundary. The video highlights the economic motivations behind westward expansion, specifically the lucrative beaver fur trade initiated by John Jacob Astor and the eventual allure of gold. It breaks down the specific routes travelers took—including the Oregon, California, Santa Fe, and Mormon trails—and connects these pathways to modern settlement patterns in the American West. Key historical figures like James K. Polk and his campaign slogan "54-40 or Fight" are discussed in the context of international diplomacy. Teachers can use this video to illustrate the concept of Manifest Destiny and the practical mechanics of how the American map was drawn. It provides excellent opportunities to discuss the intersection of economics, geography, and politics. The content is well-suited for explaining why specific cities like Salt Lake City and San Francisco developed where they did, and how natural geography and early trade routes shaped the political boundaries of the United States.