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In 1789, Samuel Slater was a very skilled mechanic for Great Britain. Samuel had work in a British Mill and his knowledge and skills was demanded in U.S.A. In 1793, he visited Moses Brown, a quaker who own a mill in, Pawtucket, Rhode Island. The mill was doing very bad and Samuel had built the first successful mill in the U.S.A. It was high powered by water use in the nice flowing river

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In 1798, Eli Whitney built the first ever Interchangeable Parts for guns. Back then skilled workers in gun stores made everything hand by hand. What happen was if a part broke the skilled worker would have to make a new part for just that gun. But Eli Whitney wanted to already have those parts ready to go so it was easy to grab, buy and, go. When Whitney went to Washington D.C. when he had sorted parts for 10 muskets in a separate piles. In just minutes the first musket was made then he repeated until all ten were made.

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In the 1800s, Boys and Girls as young as seven worked in huge factories. They usually worked in mills. They would squeeze around large machines to change spindles.

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In 1800, about 5 million people lived in rural areas and only 322,000 who lived in cities. Also in 1800, only 6 percent lived and urban areas. In this time it would only take 30 minutes to walk through the whole city.

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In the war of 1812, Girls called ¨ Lowell Girls ¨ were usually 15 to 30 years old. They worked in large cotton factories,and they live and huge boarding houses. In a typical boarding house their was usually 20 to 40 woman living in a dorm. Their was always two sleeping on a bed. They worked for about 12 - 14 hours each day.

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In 1825, Jethro Woods was creating a iron plow with replaceable parts. But then John Deere created a better plow that was faster and not pulled by an ox but a horse.

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In 1834, Philo Stewart had made an iron stove small enough to use in kitchens at this time. It had use wood and about 90,000 were sold. It made it easier to cook food.

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In 1844, Samuel F.B. Morse made the telegraph. What it did was it was a device that sent messages along a wire

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In 1846, Elias Howe had made the first every sewing machine, later Issac singer improve it so it made 12 dozen shirts at a time

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In 1847, Cyrus Mccormick had made the reaper. They were made in chicago. It was a machine that horses pulled that cut and grab wheats and other grains.