Benjamin Banneker, born free in Maryland in 1731, was remarkable because of his mechanical and mathematical abilities. In an August 19, 1791, letter to Thomas Jefferson, then Secretary of State, he enclosed a manuscript copy of his first almanac.
Benjamin Banneker Almanack
By Mary Bellis, About.com Guide
Benjamin Banneker's Pennsylvania, Delaware, Maryland and Virginia Almanack and Ephemeris, for the Year of Our Lord 1792.
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