Template:Today in Math History for June 23

Calendar of Today in Math History for June
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• June 23, 1912 Alan Mathison Turing is born in London.
• June 23, 1993 At Cambridge, Andrew Wiles gives the third of three lectures about Fermat's last theorem, and claims to have proven it. At this point he's unaware of a mistake in his proof that will take him a year to fix.