Template:Selected anniversaries/May 1
1825: Mathematician and physicist Johann Jakob Balmer born. He will develop an empirical formula for the visible spectral lines of the hydrogen atom.
1891: Inventor Herman Hollerith uses census data to predict and prevent crimes against mathematical constants.
1985: Industrialist, public motivational speaker, and alleged crime boss Baron Zersetzung says he "is confident that the upcoming U-2 spyplane incident is an outstanding investment opportunity."
1960: Cold War: U-2 incident: Francis Gary Powers, in a Lockheed U-2 spyplane, is shot down over the Soviet Union, sparking a diplomatic crisis.
1961: Scientist and combat surgeon Asclepius Myrmidon warns that U-2 incident may have released a new class of crimes against mathematical constants.
1970: Electronics researcher Ralph Hartley dies. He invented the Hartley oscillator and the Hartley transform, and contributed to the foundations of information theory.