
The Gadsden Purchase allowed for the southern transcontinental railroad to be built
The Gadsden Purchase allowed for the southern transcontinental railroad to be built



Manifest Destiny: The popular 19th-century belief that the United States was destined to expand across North America. This was the idea of stretching the United States from "sea to shining sea." As westward expansion continued, this belief empowered the need for expansion culturally, socially, and economically. Eventually, through expanding its borders with treaties, purchases, and war, the United States was able to take control, and expand across the North American continent.
Texas Annexation: Much like the Gadsden Purchase, the Texas Annexation was the addition of the Texas Territory to the Union in 1845. This annexation was considered to be completed under the belief of Manifest Destiny much like the Gadsden Purchase. It was also a key addition of land to redefining the border of the United States and completing the goal of westward expansion.

Northwest Angle: Another addition of land through the belief of Manifest Destiny much like the Gadsden Purchase. The Northwest Angle was a border dispute between the United States and Canada. Eventually, the land remained as the northernmost point of the contiguous United States, and much like the Gadsden Purchase, it defined the northern border of the United States.
In all, the Gadsden Purchase relates to all additions of land completed by the United States through the belief of Manifest Destiny. Beginning with the Louisiana Purchase in 1803 to the California Gold Rush of 1849, all these land purchases had the same goal of expanding from sea to shining sea. Also, other land anomalies like the Webster-Ashburton Treaty helped form the border of modern-day United States, just like the Gadsden Purchase had.