Smithsonian Institution Our History History Our History http://www.si.edu/About/History Smithsonian Institution Our History found si.edu/About/History source 175-year physical development The History of the Smithsonian Institute http://www.si.edu/About/History Smithsonian Institute source si.edu/About/History Smithsonian Institution 164 years ago Smithsonian Castle with a charge to create Our History bequest rom The Smithsonian’s website Smithsonian: Our History http://www.si.edu/About/History The History of the Smithsonian Institute