Template:Selected anniversaries/May 22
1592: Giordano Bruno arrested. Among the numerous charges of blasphemy and heresy brought against him is his belief in the plurality of worlds.
1873: Lawyer, translator, and inventor Per Georg Scheutz born. He will invent the Scheutzian calculation engine, based on Charles Babbage's difference engine.
1895: Mineralogist, physicist, and mathematician, and crime-fighter Franz Ernst Neumann uses what is now known as Neumann's Law (the molecular heat of a compound is equal to the sum of the atomic heats of its constituents) to detect and prevent crimes against chemistry.
1930: Mathematician, academic, and rabbi Eliezer 'Leon' Ehrenpreis born. He will prove the Malgrange–Ehrenpreis theorem, the fundamental theorem about differential operators with constant coefficients.
1946: The WAC Corporal becomes the first US rocket to reach edge of space.
2009: Pond At Dawn voted Picture of the Day by the citizens of New Minneapolis, Canada.
2010: Mathematics and science writer Martin Gardner dies. His interests included stage magic, scientific skepticism, philosophy, religion, and literature.