Title: Six Territorial Gains in the US in the 1800s | Synonym
Headings: Six Territorial Gains in the US in the 1800s
Six Territorial Gains in the US in the 1800s
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1 Louisiana Purchase
2 Texas and Florida
3 Oregon Territory
4 Half of Mexico
5 Alaska
6 Hawaii, the Philippines and Puerto Rico

Content: It was annexed by the United States in March of 1845 and became a state by the end of December. Northern politicians objected to the annexation of such a large slave-holding state, while the South welcomed it. 3 Oregon Territory
By 1820 the territory of present-day Oregon, Washington, Idaho, and portions of Montana, Wyoming and British Columbia was shared by Britain and the U.S. In 1845 the U.S. began negotiations to divide the territory at 49 degrees north latitude, bisecting Vancouver Island. Americans considered that the United States had a "manifest destiny" to expand across the continent. Democratic presidential candidate James K. Polk promoted an even more expansionist stance with his campaign slogan "54 40 or Fight!" calling for a border at 54 degrees, 40 minutes north latitude. The 1846 Treaty of Washington set the border at the 49th parallel, but ceded all of Vancouver Island to Britain. The acquisition gave the U.S. valuable grazing and farm land, mineral reserves and coastal ports. 4 Half of Mexico
In the Mexican Cession, a result of the Mexican-American War, Mexico ceded more than 520,000 square miles to the United States. It was almost half of Mexico’s North American possessions and included modern-day California, Nevada and Utah, and parts of Arizona, Colorado and New Mexico.