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The answer is mass production, interchangeable parts, and mechanization revolutionized American industries.
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The Battle of Stalingrad. Marked by fierce close quarters combat and direct assaults on civilians by air raids, it is often regarded as one of the single largest (nearly 2.2 million personnel) and bloodiest (1.7–2 million wounded, killed or captured) battles in the history of warfare.
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Answer:
low wages, the proliferation of debt,
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I searched it up, trust me
The majority of immigrants to America before 1870 were of western European descent, such as the Irish and French, although there were immigrants from all over the world as well.
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Worms are genetically and physically able to do so, but humans don't always remember things because the brain makes room for stuff that it thinks is more important and throws out old information or you brain changed and it physically cant remember that because of how long ago it was and it could've been little to unimportant to remember every single thing you would need photographic memory.