From the history of maths
Katherine Johnson
She calculated flight paths for NASA. Before John Glenn’s 1962 orbit, he asked for her to check the computer’s numbers by hand.
She received the Presidential Medal of Freedom in 2015.
NASA, Public domain, via Wikimedia Commons
Where you’ll meet Johnson here
GeometryCalculus
They turn up beside problems and lessons on these topics.
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Euclid
His Elements was used as a textbook for more than two thousand years.
Book IX contains the classic proof that there are infinitely many primes.
Painted c. 1630; an imagined likeness. Jusepe de Ribera, Public domain, via Wikimedia Commons