MacTutor
3rd April
On this day in 1753, Leonard Euler wrote to Christian Goldbach to say that he had confirmed Goldbach's conjecture that every odd integer could be written as with p a prime for the the first 2500 integers. A hundred years later, Moritz Stern found two counterexamples: 5777 and 5993.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1972.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1972.