![]() Many abolitionists and advocates of racial equality have promoted and praised his work. He also corresponded with Thomas Jefferson on topics such as racial equality and slavery. He was an African-American whose knowledge of astronomy helped him author series of almanacs that became commercially successful. It is pictured on the right.Benjamin Banneker was a famous self-educated scientist, inventor, astronomer, writer and antislavery activist. In 1980 the US Postal Service issued a postage stamp in his honor. On October 9, 1806, at age 74, Benjamin Banneker died in his home town of Ellicott's Mills, Maryland. His pioneering discoveries brought positive change to mathematics. People still wonder which logarithmic table he might have used.īenjamin Banneker was instrumental in devising a method of finding the lengths of the sides of an equilateral triangle inscribed in a circle, whose diameter is known. His puzzle, 'Trigonometry' demonstrates his expertise in logarithms.
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