Completion of Wings of Smithsonian Building

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The Building Committee reports that the east and west wings and ranges of the Smithsonian Institution Building or "Castle" are completed, and the lecture room has been enlarged in the east wing to accommodate one thousand persons (AR 1849, p. 61).


  • Smithsonian Institution Building East Wing
  • Smithsonian Institution Building Lecture Hall
  • Smithsonian Institution Building (Washington, D.C.)
  • Smithsonian Institution Building West Wing


Chronology of Smithsonian History


  • Goode, 1897, page 834, gives the date as December 31.
  • Goode, George Brown, ed. The Smithsonian Institution, 1846-1896, The History of Its First Half Century. Washington, D.C.: De Vinne Press, 1897., p. 834
  • Field, Cynthia R., Richard E. Stamm, and Heather P. Ewing. The Castle: An Illustrated History of the Smithsonian Building. Washington, D.C.: Smithsonian Institution Press, 1993, pp. 74, 165
  • Annual Report of the Smithsonian Institution for the year 1849, p. 60-61

Contact information

Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, S.W., Washington, D.C. 20024-2520,


January 2, 1850


  • Architecture
  • Lectures and lecturing
  • Buildings

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