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First mill built in Lowell, Massachusetts
While many people were trying to carve out a new existence in states and territories continually stretching to the West, another group pioneered the AMERICAN INDUSTRIAL REVOLUTION. They developed new, large forms of business ENTERPRISE that involved the use of power-driven machinery to produce products and goods previously produced in the home or small shop. The machinery was grouped together in factories. -
Patent issued for the Cotton Gin
The cotton gin is a device for removing the seeds from cotton fiber. Such machines have been around for centuries. Eli Whitney's machine of 1794, however, was the first to clean short-staple cotton, and a single device could produce up to fifty pounds of cleaned cotton in a day. -
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Lewis and Clark Expedition
The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the first American expedition to cross what is now the western portion of the United States, departing in May 1804, from near St. Louis making their way westward through the continental divide to the Pacific coast. -
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Trail of Tears
In 1838 and 1839, as part of Andrew Jackson's Indian removal policy, the Cherokee nation was forced to give up its lands east of the Mississippi River and to migrate to an area in present-day Oklahoma. The Cherokee people called this journey the "Trail of Tears," because of its devastating effects. -
Gold Discovered at Sutter's Mill
James W. Marshall was building a sawmill for Captain John Sutter, using water from the South Fork of the American River. He noticed several flakes of metal in the tailrace water and recognized them to be gold. Though he tried to keep it a secret, the word spread quickly, and triggered the California Gold Rush of 1849 -
Signing of the Treaty of Guadalupe Hidalgo
The war officially ended with the February 2, 1848, signing in Mexico of the Treaty of Guadalupe Hidalgo. The treaty added an additional 525,000 square miles to United States territory, including the land that makes up all or parts of present-day Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming.