Railroads: The Engine of Agricultural Expansion In the mid-1860s, railroads became one of the most powerful forces driving the expansion of American agriculture. As new lines crisscrossed the nation, they …
Homestead Act and America’s Westward Expansion
Reaching the Mississippi: The Edge of the Frontier By 1813, America’s western frontier stretched to the Mississippi River, marking a major milestone in the nation’s expansion. At its heart stood …