Describe the effects of American expansion across the Southwest from Essay

Describe the effects of American expansion across the Southwest from the 1820s through the 1840s - Essay Example Vermont joined the Union in the year 1791 as a separate State. In 1792, Kentucky was admitted to the Union; and in 1820, Maine was included (Westward Expansion). The treaty between the US and Spain of 1821 served to establish the boundary of Louisiana. Under this treaty, the boundary was to commence from the mouth of the river Sabine in the Gulf of Mexico and proceed till the west bank of the Sabine up to the thirty – second degree of north latitude. From there it was to continue along the north of the Red River, along the south bank of the Red River to the one – hundredth degree of east longitude. Subsequently, the border was to pass north of the Arkansas and then onwards to the south bank of the Arkansas. Finally, it was to pass along the forty-second degree north latitude up to the Pacific Ocean (Westward Expansion). This treaty settled the boundary issue with regard to the States of Washington, Oregon, Idaho, and the western regions of Wyoming. The US claimed this land on the basis of its discoveries in 1792, its explorations of 1805, and settlement in 1811. In 1848, the dispute with Canada, regarding the boundary between the latter and Washington and Idaho was resolved (Westward Expansion). The expansion took place in the directions of the south, west, and the declining Spanish empire’s new territories. In 1819, Spain ceded Florida to the US, under the requirements of the Adams – Onis Treaty. This Treaty clearly demarcated Louisiana and Spanish Texas. This border passed through the Rocky Mountains, along the coast of the Arkansas River, and along the southern borders of the states of Idaho and Oregon (Johnson and Woloch). This Treaty played a major role in determining the borders of the United States, along the land adjoining the Pacific Ocean. In the period between 1820 and 1840, there was a westward movement of the people, in the US, which had a profound effect on agriculture, education,