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Births on August 20

Simon Donaldson
1957Aug, 20

Simon Donaldson

Simon Donaldson, English mathematician and academic
Sir Simon Kirwan Donaldson (born 20 August 1957) is an English mathematician known for his work on the topology of smooth (differentiable) four-dimensional manifolds, Donaldson–Thomas theory, and his contributions to Kähler geometry. He is currently a permanent member of the Simons Center for Geometry and Physics at Stony Brook University in New York, and a Professor in Pure Mathematics at Imperial College London.

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Events on 1957

  • 9Jan

    Suez Crisis

    British Prime Minister Sir Anthony Eden resigns from office following his failure to retake the Suez Canal from Egyptian sovereignty.
  • 8Mar

    Suez Crisis

    Egypt re-opens the Suez Canal after the Suez Crisis.
  • 24Jun

    First Amendment to the United States Constitution

    In Roth v. United States, the U.S. Supreme Court rules that obscenity is not protected by the First Amendment.
  • 6Jul

    Paul McCartney

    John Lennon and Paul McCartney meet for the first time, as teenagers at Woolton Fete, three years before forming the Beatles.
  • 24Sep

    101st Airborne Division

    President Dwight D. Eisenhower sends 101st Airborne Division troops to Little Rock, Arkansas, to enforce desegregation.