Clark, George Rogers (sh) and harmonica (sh)

Clark, George Rogers (sh)

born Nov. 19, 1752, Albemarle county, Va.
died Feb. 13, 1818, near Louisville, Ky., U.S.

Frontier military leader in the American Revolution.

The brother of William Clark, he worked as a surveyor in Kentucky in the mid-1770s. During the Revolution he raised troops and defended the region against the British and Indians. He captured settlements along the Mississippi River in the Old Northwest (Illinois), and in 1780 he helped defeat a British attempt to capture St. Louis. Appointed an Indian commissioner, he helped conclude a treaty with the Shawnee. In 1793 he became involved in the Citizen Genet Affair.

harmonica (sh)

or mouth organ

Small rectangular wind instrument consisting of free metal reeds set in slots in a small wooden frame and blown through two parallel rows of wind channels.

Successive notes of the diatonic (seven-note) scale are obtained by alternately blowing and sucking; the tongue covers channels not required. In chromatic (12-note scale) models, a finger-operated stop selects either of two sets of reeds tuned a semitone apart. The harmonica was invented in 1821 by Friedrich Buschmann (1805-64) of Berlin, who borrowed the basic principle from the Chinese sheng. It is widely used in blues as well as folk Music and country Music.

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