Answer:
During the Industrial Revolution, the US underwent a technological advancement and a remake of how the economy worked. One of these technological advancement was the assembly line, which helped speed up production, as well as create "specialized" jobs (jobs in which a worker specializes in a part of the creation, such as creation of the engine and only the engine for a car, for example, in case you are wondering - remove the parenthesis and content inside). These changes in how factories worked helped with the mass exodus of the population from the rural areas to cities for higher pays, which helped with the population boom, and the soon to be restructuring of how cities worked and the services they provided. Without the Industrial Revolution, the US would not be the economically (& later miliatry) giant that she is right now.
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Jim crow was not a real person but it was a phrase "Jim Crow" has often been attributed to "Jump Jim Crow<span>", a song-and-dance c</span>aricature<span> of blacks performed by white actor Thomas D.Rice</span><span> in b</span>lackface<span>, which first surfaced in 1832 and was used to satirize A</span>ndrew Jackson<span>'s populist policies</span>
I am Socrates!
This method even has a name; it's called Socratian Method (obviously, named after me) and it's a method that invited others to do critical thinking rather than give them ready-made answers.
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“We see different views of the Universe from where we live as Earth makes its yearly trip around the solar system. That is why we have a different Star Finder for each month, as different constellations come into view.”