The spinning jenny was invented in England in 1764 by a weaver and carpenter named James Hargreaves. The invention came during the Industrial Revolution in England. It allowed spinners to produce eight spools of thread in the same amount of time it had previously taken them to spin one.
Later versions of the spinning jenny had more than eight wheels and were able to spin thread and yarn even faster. James Hargreaves was slow in applying for a patent on his invention. He got the patent and began making money off his invention in 1770. Later inventors improved on the invention.