The notion that Americans have a God-given right to have a nation that extends from the Atlantic to the Pacific Oceans
Manifest Destiny was articulated by newspaper editor JohnO'Sullivan in July 1845
Reasons for westward expansion
Need for more access to mineral and naturalresources
Discovery of gold in California in 1848 (California Gold Rush)
New economic and homesteading opportunities
Religious refuge (Mormons)
The PreemptionActs during the 1830s and 1840s made vast tracts of land available for cheap to anyone who wanted to buy it, set up a homestead and get to farming it
The migration west was largely made by the middleclass and not the poor
Around 70,000 Mormons migrated to Utah over the next 20 years after fleeing persecution in the Midwest
JamesK.Polk
Elected in 1844, was a big believer in Manifest Destiny and wanted to annex Texas and Oregon
Oregon Territory
1. Both Britain and the US laid competing claims to the territory
2. Americans claimed it due to increased settlement by missionaries and farmers
3. Polk negotiated an agreement with Britain to divide the territory at the 49th parallel