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The land on which Washinton was to be built was surveyed in 1791 by Andrew Ellicott and Benjamin Banneker. The latter, a self-taught astronomer of African descent, used astronomical readings to fix the positions of the 40 boundary stones marking the perimeter of the 10 square mile site.

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Adelia Muller

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13y ago

The land on which Washinton was to be built was surveyed in 1791 by Andrew Ellicott and Benjamin Banneker. The latter, a self-taught astronomer of African descent, used astronomical readings to fix the positions of the 40 boundary stones marking the perimeter of the 10 square mile site.

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15y ago

Benjamin Banneker (1731-1806), who is often called "the first African American scientist". History suggests that he was the grandson of a freed slave.

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Benjamin Banneker

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12y ago

Benjamin Banneker

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6y ago

grat

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Q: This African American was appointed by President George Washington to help survey the land that would become Washington DC Who was it?
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