| − | '''Benjamin Banneker''', born on November 9, 1731, was the first African-American scientist.<ref>[http://www.booknutsreadingclub.com/newhope/banneker.html]</ref> He also studied mathematics, astronomy, and mechanics. In 1790, he was appointed by President [[George Washington]] to help lay out and measure the city of [[Washington, D.C.]] | + | '''Benjamin Banneker''', born on November 9, 1731, was the first African-American scientist.<ref>[https://books.google.com/books?id=d04vCgAAQBAJ&pg=PA23 Benjamin Banneker: Brilliant Surveyor, Mathematician, and Astronomer]</ref> He also studied mathematics, astronomy, and mechanics. In 1790, he was appointed by President [[George Washington]] to help lay out and measure the city of [[Washington, D.C.]] |