Template:Selected anniversaries/April 29
1667: Physician, satirist, and polymath John Arbuthnot born. He will invent the figure of John Bull.
1756: Inventor, astronomer, mathematician, clockmaker, and surveyor David Rittenhouse constructs an exceptionally accurate orrery, which he will later use to create an early form of time crystals (nonfiction).
1854: Mathematician, physicist, and engineer Henri Poincaré born. He will make many original fundamental contributions to pure and applied mathematics, mathematical physics, and celestial mechanics.
1880: Signed first edition of Alice Beta and Niles Cartouchian Play Chess briefly stolen from the British Museum by the Forbidden Ratio. The high-speedy robbery, which lasted approximately six hundred milliseconds, failed when one of Forbidden Ratio's subsystems tripped and fell on the front steps of the museum.
1974: Watergate scandal: United States President Richard Nixon announces the release of edited transcripts of White House tape recordings relating to the scandal.
1985: Asclepius Myrmidon discovers an unlicensed halting problem "which will almost certainly result in a major radiation release event within a year."
1986: Chernobyl disaster: American and European spy satellites capture the ruins of the 4th Reactor at the Chernobyl Power Plant.
1987: Steganographic analysis of The Shovel unexptedly reveals "at least a terabyte" of encrypted data, apparently a transdimensional contract requiring Egon Rhodomunde and Baron Zersetzung to "blow up a nuclear power plant, and this time do it right".
2018: The two creatures depicted in Two Creatures 3 officially petition the United Nations for political asylum.