Shortly before the Civil War,it was discovered that kerosene,a byproduct of crude oil that had been considered useless,could be used for lighting.

Name: Shortly before the Civil War,it was discovered that kerosene,a byproduct of crude oil that had been considered useless,could be used for lighting.
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This statement is true. Kerosene, a byproduct of crude oil, was discovered to be a useful source of lighting shortly before the Civil War.

Shortly Before the Civil War,it Was Discovered That Kerosene,a Byproduct