The agency which helped freed African Americans by establishing schools was Freedmen's Bureau. I hope that this is the answer that you were looking for and it has helped you.
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Answer:
napoleon lost a huge part of his army due to fire set by Russian nationalist, because they could not survive a Russian winter
His innovations as the phonograph, the incandescent light bulb and one of the earliest motion picture cameras. He also created the world's first industrial research laboratory.
