Template:Selected anniversaries/April 17

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  • 1598: Priest and astromomer Giovanni Battista Riccioli born. Riccioli will experiment with pendulums and falling bodies, discuss arguments concerning the motion of the Earth, and introduce the current scheme of lunar nomenclature.

    1598: Priest and astromomer Giovanni Battista Riccioli born. Riccioli will experiment with pendulums and falling bodies, discuss arguments concerning the motion of the Earth, and introduce the current scheme of lunar nomenclature.

  • 1790: Polymath Benjamin Franklin dies. Franklin was a leading writer, printer, political philosopher, politician, Freemason, postmaster, scientist, inventor, humorist, civic activist, statesman, and diplomat.

    1790: Polymath Benjamin Franklin dies. Franklin was a leading writer, printer, political philosopher, politician, Freemason, postmaster, scientist, inventor, humorist, civic activist, statesman, and diplomat.

  • 1902: Mathematician and astronomer Eberhard Hopf born. Hopf will pioneer ergodic theory and bifurcation theory, and make contributions to partial differential equations, integral equations, fluid dynamics, and differential geometry.

    1902: Mathematician and astronomer Eberhard Hopf born. Hopf will pioneer ergodic theory and bifurcation theory, and make contributions to partial differential equations, integral equations, fluid dynamics, and differential geometry.

  • 1938: Philosopher and author Kerry Wendell Thornley born. Thornley will write a manuscript, The Idle Warriors, about his acquaintence Lee Harvey Oswald.

    1938: Philosopher and author Kerry Wendell Thornley born. Thornley will write a manuscript, The Idle Warriors, about his acquaintence Lee Harvey Oswald.

  • 1961: Bay of Pigs Invasion: A group of Cuban exiles financed and trained by the CIA lands at the Bay of Pigs in Cuba with the aim of ousting Fidel Castro.

    1961: Bay of Pigs Invasion: A group of Cuban exiles financed and trained by the CIA lands at the Bay of Pigs in Cuba with the aim of ousting Fidel Castro.

  • 1969: Sirhan Sirhan is convicted of assassinating Robert F. Kennedy.

    1969: Sirhan Sirhan is convicted of assassinating Robert F. Kennedy.

  • 1996: Mathematician, author, and poet Piet Hein dies. Hein proposed the use of superellipses in architecture; superellipses subsequently became the hallmark of modern Scandinavian architecture.

    1996: Mathematician, author, and poet Piet Hein dies. Hein proposed the use of superellipses in architecture; superellipses subsequently became the hallmark of modern Scandinavian architecture.

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