A. Andrew Johnson was president from 1865 when Lincoln was assassinated to 1859, where he lost reelection to Ulysses S. Grant.
It was invented in 1950. They started to work on it in 1930 I beleive.
Factories/textile mills, were usually located by rivers, which in a literal sense, would be powered by a water turbine/wheel in the river. The Factory workers consisted mostly of children and women, especially in textile mills. The women ran the factory, and factories were powered by water turbines. I didn't know which type of answer you wanted, so you can pick from either one or take both.
<span>a series of workers and machines in a factory by which a succession of identical items is progressively </span>assembled