I don't know what you're referring to, but I'll try to help!
The first U.S. factories were built around the turn of the nineteenth century. Most were located in the northeastern states, and they were usually established by a group of local businessmen who remained involved in their day-to-day operation at some level.
Factories were necessary because the machinery was expensive, large, needed power, and was operated by many workers. Division of labor - The factory system introduced the division of labor. This is where different workers each have a specific task in making the product.
here did factories start, and where/how did the factory system spread? Factories were introduced in Britain, specifically factories that specialized in textile and iron production. The factory system spread to other regions of Europe and to America.
Just pick one that's close to your answer!