Results for "Science -- History"

1. SI History Chronology

   SI/Signal Corps Experimental Aviation

   • Date: February, 1918

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3. SI History Chronology

   Exhibits Modernization Allotment Given

   • Date: 1957

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5. SI History Chronology

   River Basin Surveys Cut

   • Date: 1954

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7. SI History Chronology

   Congress Approves SI Building Fireproofing

   • Date: August 30, 1890

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9. SI History Chronology

   First Astrophysical Observatory Appropriation

   • Date: March 3, 1891

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11. SI History Chronology

    Capital Improvement Program Authorized for NZP

    • Date: October 4, 1961

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13. SI History Chronology

    Hirshhorn Museum Appropriation Passed

    • Date: July 26, 1968

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15. SI History Chronology

    East Wing Construction Approved by Congress

    • Date: May 13, 1960

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17. SI History Chronology

    MHT Appropriation Bill Passed

    • Date: February 21, 1956

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19. SI History Chronology

    Five-Year Perspective Approved

    • Date: January 22, 1979

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21. SI History Chronology

    Museum Support Center Appropriation Passed

    • Date: 1980

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23. SI History Chronology

    Funding to Landscape the Mall

    • Date: April 20, 1852

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