The development of the cotton gin — patented in 1794 — involves an interesting lesson about solving engineering problems. Farmers in the southern United States had a big problem. Tobacco was a ...

click image for close-up In October of 1793, Eli Whitney sent a drawing of his new invention, the cotton gin, to Secretary of ... Finally, in February 1794, Whitney completed the model to his ...

The gin solved the problem inherent in marketing short-staple cotton, which grew easily in ... Whitney's fourteen-year patent was not issued until March 1794, due to the outbreak of Yellow Fever ...

In 1794, Eli Whitney was granted a patent for the cotton gin. In 1812, the U.S. government authorized the issue of America's ...

In 1879, physicist Albert Einstein was born in Ulm, Germany. In 1883, German political philosopher Karl Marx died in London at age 64. In 1885, the Gilbert and Sullivan comic opera “The Mikado” ...