<human>:  When did the Industrial Revolution start in the United States?
<bot>: The Industrial Revolution started in the 1820s, and lasted until the 1880s. During this time, the United States experienced a period of rapid economic growth, known as the Industrial Revolution. The Industrial Revolution was characterized by the development of new technologies, such as the steam engine, the spinning jenny, and the cotton gin, which led to the widespread use of factories and machines to make products. These technological advances led to the development of new industries, including the steel industry, which made steel products, such as railroads, skyscrapers, and ships.