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.
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.
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.