Template:Selected anniversaries/March 18
1604: Mathematician Robert Fludd publishes new work on cellular automata theory and its application to crimes against mathematical constants.
1640: Painter, mathematician, astronomer, and architect Philippe de La Hire born. He will be the favorite pupil of Desargues, and develop conic sections and epicycloids based on the teaching of Desargues.
1899: Marie and Pierre Curie use radium compounds to detect and counteract crimes against mathematical constants.
1927: Journalist, writer, literary editor, and actor George Plimpton born.
2017: Lend a Hand declared Picture of the Day.
1964: Mathematician and crime-fighter Gaston Maurice Julia publishes new class of Gnomon algorith functions which anticipate the later work of Tan Lei in using the Julia set to detect and prevent crimes against mathematical constants.