Industrial revolution By NashyGori69 Jan 1, 1764 The Spinning Jenny - Invented by James Hargreaves in 1764 Jan 1, 1775 The Steam Engine - The first commercially successful steam engine was invented by James Watt in 1775. Jan 1, 1793 The Cotton Gin - Invented by Eli Whitney in 1793. Jan 1, 1840 The Telegraph - Invented by Samuel Morse in the 1830s and 1840s Jan 1, 1856 The Bessemer Process - Invented by Henry Bessemer in 1856. Jan 1, 1856 The Bessemer Process - Invented by Henry Bessemer in 1856.