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Births on April 20

Donald Pettit
1955Apr, 20

Donald Pettit

Donald Pettit, American engineer and astronaut
Donald Roy Pettit (born April 20, 1955) is an American chemical engineer and a NASA astronaut. He is a veteran of two long-duration stays aboard the International Space Station, one Space Shuttle mission and a six-week expedition to find meteorites in Antarctica. As of 2021, at age 66, he is NASA's oldest active astronaut.

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Events on 1955

  • 7Jan

    Metropolitan Opera

    Contralto Marian Anderson becomes the first person of color to perform at the Metropolitan Opera in Giuseppe Verdi's Un ballo in maschera.
  • 13Feb

    Dead Sea Scrolls

    Israel obtains four of the seven Dead Sea Scrolls.
  • 18Feb

    Nevada Test Site

    Operation Teapot: Teapot test shot "Wasp" is successfully detonated at the Nevada Test Site with a yield of 1.2 kilotons. Wasp is the first of fourteen shots in the Teapot series.
  • 14May

    Warsaw Pact

    Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
  • 23Oct

    State of Vietnam referendum, 1955

    Prime Minister Ngô Đình Diệm defeats former emperor Bảo Đại in a referendum and founds the Republic of Vietnam.