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  1. SI History Chronology

    Building Accident in SI Building

    • Date: February 26, 1850

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  3. Members of the 1870 U.S. government survey of the Yellowstone River and Rocky Mountains led by Ferdinand Hayden (also known as the "Hayden Geological Survey")

    Members of the 1870 U.S. government survey of the Yellowstone River and Rocky Mountains led by Ferdinand Hayden (also known as the "Hayden Geological Survey")

    • Date: 1870

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  5. Smithsonian Legal Document

    Smithsonian Institution, Board of Regents, Minutes, 1850

    • Date: 1879 July 3, 1850
    • Creator: Board of Regents
    • Creator: Board of Regents

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Showing results 1 - 3 of 3 for Twitter