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The telegraph was used for comunication, and was a very important tool for the Union in the Civil War.
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The sewing machine was an important invention that help woman alot because they didnt need to sew with there hands anymore.
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The dynamite is the first safely manageable, and very strong explosion, stronger than black power.
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The invention help see dark streets better.
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The x ray was important because ray where able to go through tissue but not bone which help fine bullet wounds in soldiers.
