How many years did Western Expansion take?

http://www.historynet.com/westward-expansion

Thank you.

Is it not 1803 to 1853..?

I'm sure that each other defines Westward Expansion slightly differently. Go with what your text says.

To determine the duration or how many years Western Expansion took, we need to establish a specific time frame or period for reference. Western Expansion generally refers to the movement of settlers, explorers, and pioneers from the eastern parts of the United States to the western territories. This process spanned multiple decades and can be broadly understood as occurring from the early 19th century to the late 19th century.

One significant event associated with Western Expansion is the Louisiana Purchase in 1803 when the United States acquired a vast amount of land from France, doubling the size of the country. Following this acquisition, the westward migration began in earnest, with pioneers seeking opportunities for land, resources, and a chance at a better life.

The Oregon Trail, a popular emigrant route, saw considerable traffic in the 1840s and 1850s, as thousands of settlers journeyed to the Oregon Territory and California during the Gold Rush. The completion of the First Transcontinental Railroad in 1869 further facilitated the movement of people and goods to the West.

Given these historical events, we can say that Western Expansion took several decades, roughly from the early 1800s to the late 1800s. However, it's essential to note that various factors influenced the pace and extent of Western Expansion throughout this period.