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Joseph Henry (December 17, 1797 - May 13, 1878) was an American scientist who served as the first Secretary of the Smithsonian Institution.

Joseph Henry

Joseph Henry (December 17, 1797 - May 13, 1878) was an American scientist who served as the first Secretary…

The Smithsonian Institute, Washington D.C.

Smithsonian

The Smithsonian Institute, Washington D.C.