# Go West Young Man! Westward Expansion, 1840-1900

## Introduction

In the middle of the nineteenth century, farmers in the “Old West”—the land across the Allegheny Mountains in Pennsylvania—began to hear about the opportunities to be found in the “New West.” They had long believed that the land west of the Mississippi was a great desert, unfit for human habitation. But now, the federal government was encouraging them to join the migratory stream westward to this unknown land. For a variety of reasons, Americans increasingly felt compelled to fulfill their “Manifest Destiny,” a phrase that came to mean that they were expected to spread across the land given to them by God and, most importantly, spread predominantly American values to the frontier ().
With great trepidation, hundreds, and then hundreds of thousands, of settlers packed their lives into wagons and set out, following the Oregon, California, and Santa Fe Trails, to seek a new life in the West. They imagined open lands, economic opportunity, and greater freedom to fulfill the democratic vision originally promoted by Thomas Jefferson despite Native American communities living in the region. Whatever their motivation, the great migration was underway. The American pioneer spirit was born.