The Industrial Revolution in America began in the late 18th century and continued evolving through the 19th century. It officially started around 1793 with the establishment of the first textile mill in Massachusetts, brought about by Samuel Slater, who introduced British textile technology to the U.S. The revolution expanded significantly after the American Civil War (1861-1865), with major industrial growth spanning roughly from 1865 to 1900. This period saw advances in steel production, railroads, electrical power, and mass production techniques, making America a major industrial power by the turn of the 20th century.