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Katherine Johnson
Katherine Johnson was a American mathematician who is best known for her work at NASA. Her work with orbital calculus was pivotal work to get the first American man to the moon.

Early Life
Katherine Johnson was born on August 26, 1918. She was born in White Sulphor Springs,West Virginia. She started high school when she was only 10 years old. She excelled in math and counting. When she was only 14 years old, she graduated from high school. One year later when she was 15, she attended West Virginia State College. She graduated with a bachelor's degree in mathematics and French.

Work
Katherine began working at NASA in 1953. She was a computer for the West Area Computing group. She first worked on the Mercury program mission from 1961-1963. She also worked on the Apollo 13 mission in 1969.