The battle of Gettysburg was fought to get food for general lees men who had just been through a long winter.
They are most common in southern states
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It allowed profit and work to increase drastically. It also allowed texas to profit off of the oil industry more than they ever could by hand
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Today, labor unions remain an important part of many modern democratic societies. They continue to fight for the same things that workers did in the Industrial Revolution, and have played a vital role in improving life for workers. ... The Industrial Revolution had a profound impact on the lives of women.
(historycrunch.com)
The second one. Hope this helps