21st April

Mathematicians who were born or died on 21st April


Mathematicians born on this day:

1652 : Rolle
1774 : Biot
1875 : Takagi
1903 : Schoenberg
1904 : Koksma
1909 : Stiefel
1931 : Robert Thompson
1936 : Schelp
1946 : Iwanik
1951 : Freedman

Mathematicians who died on this day:

1552 : Petrus Apianus,
1718 : La Hire
1825 : Pfaff
1922 : Kempe
1946 : Keynes
1954 : Post
2005 : William Kruskal
2008 : Povzner
2010 : Federer

Posters available   (Click on a link below)

Teiji Takagi Alfred Kempe Jean-Baptiste Biot


Theorem of the day from Robin Whitty
A quotation for today

John Maynard Keynes (1883 - 1946)

I can't remember my telephone number, but I know it was in the high numbers.

Quoted in D MacHale, Comic Sections (Dublin 1993)

Another quotation by one of today's mathematicians


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JOC/EFR January 2013

This page is a copy of the one at:

School of Mathematics and Statistics
University of St Andrews, Scotland
http://www-history.mcs.st-andrews.ac.uk/history/Day_files/Day421.html