Benjamin Banneker
free African American scientist, surveyor, almanac author and farmer (1731–1806)
Benjamin Banneker (November 9, 1731 – October 19, 1806) was an American naturalist, mathematician, astronomer and almanac author. A landowner, he also worked as a surveyor and farmer.
Born in Baltimore County, Maryland, to a free African-American mother and a father who had formerly been enslaved, Banneker had little or no formal education and was largely self-taught. He became known for assisting Major Andrew Ellicott in a survey that established the original borders of the District of Columbia, the federal capital district of the United States.
Banneker's knowledge of astronomy helped him author a commercially successful series of almanacs. He corresponded with Thomas Jefferson on the topics of slavery and racial equality. Abolitionists and advocates of racial equality promoted and praised Banneker's works. Although a fire on the day of Banneker's funeral destroyed many of his papers and belongings, one of his journals and several of his remaining artifacts survived.
Banneker became a folk-hero after his death, leading to many accounts of his life being exaggerated or embellished. The names of parks, schools and streets commemorate him and his works, as do other tributes.
“Benjamin Banneker” enters the record as free African American scientist, surveyor, almanac author and farmer (1731–1806). Crown Archives preserves that source wording while asking what Benjamin, Banneker and free can confirm, complicate or overturn.
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Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Aug 23, 2026. The linked authority identifier is Q557600. VIAF identifies the subject as 232149066562165601459. The Library of Congress control number is n50022091. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1731 and 1806.
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This entry incorporates text from “Benjamin Banneker” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.