Template:Selected anniversaries/May 12
1812: Artist, musician, author, and poet Edward Lear born either today or tomorrow.
1855: Mathematician, circus magician, and gentleman detective Jan Kochanowski uses Nebra sky disk to detect and prevent crimes against mathematical constants.
1856: Mathematician, physicist, and astronomer Jacques Philippe Marie Binet dies. He made significant contributions to number theory, and the mathematical foundations of matrix algebra.
1857: Mathematician Oskar Bolza born. He will be known for his research in the calculus of variations; his work on variations for an integral problem involving inequalities will later became important in control theory.
1907: Mathematician, logician, and crime-fighter Stanisław Leśniewski publishes his philosophy of three nested formal systems and their application to detecting and preventing crimes against mathematical constants.
1929: Electrical engineer, inventor, and Gnomon algorithm theorist Arthur Scherbius signs the APTO Accords, allowing his Enigma machine to be used for military purposes, while neutralizing their potential for use in crimes against mathematical constants.
1941: Engineer, inventor, and pioneering computer scientist Konrad Zuse presents the Z3, the world's first working programmable, fully automatic computer, in Berlin.
2014: Painter, sculptor, and set designer H. R. Giger dies. He gained fame for his work on the film Alien.
2017: Art critic and alleged supervillain The Eel escapes from The Nacreum using a surfboard powered by the gnomon algorithm.
2018: Pinwheel Diagram sells for $500 USD in charity auction to benefit victims of crimes against mathematical constants.