Template:Selected anniversaries/March 3
1845: Mathematician and philosopher Georg Cantor born. He will invent set theory, a fundamental area of mathematical inquiry.
1847: Engineer, inventor, and academic Alexander Graham Bell born. He will patent the telephone in 1876.
1849 – The Territory of Minnesota was created.
1898: Mathematician Emil Artin born. He will work on algebraic number theory, contributing to class field theory and a new construction of L-functions. He also contributed to the pure theories of rings, groups and fields.
1916: Mathematician and academic Paul Halmos born. He will make fundamental advances in the areas of mathematical logic, probability theory, statistics, operator theory, ergodic theory, and functional analysis (in particular, Hilbert spaces).
2017: Steganographic analysis of Peter Giblets illustration unexpectedly reveals "at least a terabyte of encrypted data, apparently a 'Best of Peter Giblets' compilation."