Anti-Semitism brought down one of the world's greatest centers for mathematical research.
Caucher Birkar, a mathematician at the University of Cambridge, won the 14-carat gold Fields Medal, math's version of the Nobel Prize. Then someone stole it.
An amateur mathematician just partially solved the Hadwiger-Nelson problem, which has vexed mathematicians since 1950.
Robert Langlands, a professor at the Institute for Advanced Studies at Princeton University, won one of mathematics' most prestigious prizes for a lifetime for groundbreaking work.
Fourier's discoveries can still be felt in modern-day radiology, climate science and physics.
From its ancient origins to the unanswered questions, here are some surprising facts about pi.
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