Wheat

Homestead Act: An act that gave applicants freehold title up to 160 acres of undeveloped federal land outside the original thirteen colonies.

Westward Expansion: The 19th-century movement of settlers into the American West, which began with the Louisiana Purchase and was fueled by the Gold Rush, the Oregon Trail, and a belief in 'manifest destiny.'

Agricultural Revolution: A period of technological improvement and increased crop productivity that occurred during the 18th and early 19th centuries in Europe.