Template:Selected anniversaries/April 29

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  • 1641: Didacus automaton develops self-awareness, invents new type of scrying engine.

    1641: Didacus automaton develops self-awareness, invents new type of scrying engine.

  • 1667: Physician, satirist, and polymath John Arbuthnot born. He will invent the figure of John Bull.

    1667: Physician, satirist, and polymath John Arbuthnot born. He will invent the figure of John Bull.

  • 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.

    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.

1916 – Jørgen Pedersen Gram, Danish mathematician and academic (b. 1850)

2005 – Louis Leithold, American mathematician and academic (b. 1924)

2013 – Ernest Michael, American mathematician and scholar (b. 1925)

1953 – The first U.S. experimental 3D television broadcast showed an episode of Space Patrol on Los Angeles ABC affiliate KECA-TV.

1974 – Watergate scandal: United States President Richard Nixon announces the release of edited transcripts of White House tape recordings relating to the scandal.

1986 – Chernobyl disaster: American and European spy satellites capture the ruins of the 4th Reactor at the Chernobyl Power Plant

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