Last month was the 300th birth anniversary of the Mathematician extraorinaire Leonhard Euler. Here is a story from the Washington post. For those people who are not familiar with Euler the following excerpt should serve as a good introduction.

“The four greatest mathematical scientists of all time are Archimedes, Isaac Newton, Leonhard Euler and Carl Friedrich Gauss,” said Ronald S. Calinger, a historian of mathematics at Catholic University. He is nearly done with the first book-length biography of Euler written in English.