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Period: to
westward expansion
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Louisiana Purchase
the United States purchased approximately 828,000,000 square miles of territory from France, thereby doubling the size of the young republic. What was known as Louisiana Territory stretched from the Mississippi River in the east to the Rocky Mountains in the west and from the Gulf of Mexico in the south to the Canadian border in the north. -
British Cession
Under Monroe’s first term as president, Britain and the U.S. signed the Treaty of 1818, which established the boundary between U.S. and Canadian territories at the 49th parallel. -
Adams onis treaty
The AdamsOnís Treaty sometimes referred to as The Florida Treaty was signed in Washington on February 22, 1819 and ratified by Spain October 24, 1820 and entered into force February 22, 1821. It terminated April 14,1903 by a treaty of July 3, 1902. The treaty was named for John Quincy Adams of the United States and Louis de Onís of Spain and renounced any claim of the United States to Texas. It fixed the western boundary of the Louisiana Purchase as beginning at the mouth of the Sabine River -
Texas Annexation
These events brought within the control of the United States the future states of Texas, California, Nevada, New Mexico, Arizona, Utah, Washington, and Oregon, as well as portions of what would later become Oklahoma, Colorado, Kansas, Wyoming, and Montana. -
mexican cession
The treaty also stated that Mexicans who remained in the state would be permitted to become U. S. citizens, and that they would be allowed to keep their property. -
Oregon territory
the region was divided between the U.S. and Great Britain in 1846. When established, the territory encompassed an area that included the current states of Oregon, Washington, and Idaho, as well as parts of Wyoming and Montana. The capital of the territory was first Oregon City, then Salem, followed briefly by Corvallis, then back to Salem, which became the state capital upon Oregon's admission to the Union. -
Gadsden Purchase
The purchase included lands south of the Gila River and west of the Rio Grande; it was largely for the purpose that the US might construct a transcontinental railroad along a deep southern route. It also aimed to reconcile outstanding border issues between the US and Mexico following the Treaty of Guadalupe Hidalgo, which ended the Mexican–American War of 1846–48.
