Precise: The Jeffersonian Era

Manifest Destiny was an era of territorial expansion of the United States, which started from the end of War of 1812 to the begging of the American Civil War 1860. It was the belief that the United State was destined to expand from the Atlantic to the Pacific Ocean. It was originally a political phrase of the 19th Century, first used by Jacksonian Democrats to promote the invasion of the Western United States. When America decided to initiate the westward expansion the land was not owned by America. A majority of the land was owned by the British, and the Native Americans. In order to receive this land Americans needed to drive the Native Americans and the British out of the territory. This would mean that a war must be fought and many lives lost just so that the American people can own more land. The Americans forced some of the Native American tribes to relocate hundreds of miles away in a new land which was foreign to them. The journey was a very tough one and there was no promise of a good life in the new location. Many Native Americans died on this journey and some even died after they were settled in the new lands.
The Oregon territory was owned by Britain and America after the War of 1812. In order for the Americans to own the Oregon territory they must first eradicate the British. America made a treaty with Britain in order to be the sole owner of this land. America acted very aggressive in obtaining this treaty. The eradication of the Indians and the treaty with Britain proved that Manifest Destiny was not as philanthropic as many believed it to be.
When America began Manifest Destiny a large portion of the west was controlled by Mexico. Mexico was very upset at the fact that America came over and stole their land. In order for America to obtain the Mexican lands was to have armed conflicts, meaning they must