Births on August 20

Simon Donaldson

Born on August 20, 1957

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.

References

Simon Donaldson

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Events on 1957

9 Jan

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

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

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.
6 Jul

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

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

Births on August 20

Simon Donaldson

Born on August 20, 1957

References

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Events on 1957

Suez Crisis

Suez Crisis

First Amendment to the United States Constitution

Paul McCartney

101st Airborne Division