Q: Iâm 24 years old female. I have a hard lump directly under my chin, not in my throat. I have had an itchy throat and have always has a lot of phlegm. I noticed the lump three days ago. My sister has had two benign tumors removed from her throat in the last 3 years. I donât know if this is important information but I thought it would be helpful.
In 1790, Samuel Slater built the first factory in America, based on the secrets of textile manufacturing he brought from England. He built a cotton-spinning mill in Pawtucket, Rhode Island, soon run by water-power.
Eli Whitney was one of the first great inventors in the United States. He invented the cotton gin, which helped to make cotton the most important crop of the Southern states. He also invented methods of producing many goods quickly and cheaply. Factories still use these methods, called mass production, today.