The spinning jenny was invented in 1764 by James Hargreaves. This invention also dealt with the textile industry, like the cotton gin. This invention revolutionized the process of spinning yarn. Instead of being able to simply spin one spool of yarn at a time, the spinning jenny allowed spinners to spin 8 spools at once. (This number later grew to 120 spools, as technology advanced further.) At this point in history, the demand for cotton was much greater than the supply, and thus James Hargreaves improved the production of yarn to keep up with the cotton industry.
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