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John Cleves Symmes

soldier

John Cleves Symmes

American army officer, academic and hollow-earth theorist (1779/1780–1829)

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About John Cleves Symmes

Captain John Cleves Symmes Jr. was an American Army officer, trader, and lecturer. Symmes is best known for his 1818 variant of the Hollow Earth theory, which introduced the concept of openings to the inner world at the poles.

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Occupation: soldier, military officer, writer
Citizenship: United States
Born: 1779, 1780
Died: May 28, 1829

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Facts from Wikidata (CC0). Image by John James Audubon via Wikimedia Commons (Public domain).

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