6 янв 1764 г. - The Spinning Jenny was an invention that allowed one worker to simultaneously spin 8 spools of yarn or cotton. This allowed mass production of usable materials which helped contribute to the rise in factory use and efficiency which also affected urbanisation rates due to the increase in usable product needed more workers. Due to its help in the rise in production and jobs its credited to be one of the main inventions that started the industrial revolution.
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