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[[Image:Leonhard Euler.jpg|right|thumb]]

[[Image:Leonhard Euler.jpg|right|thumb]]

'''Leonhard Euler''' (1707-1783) was a devout [[Christian]] ([[Calvinist]]) who became the greatest [[mathematician]] of the eighteenth century and perhaps the most productive of all time.  Born in Switzerland to a [[Calvinist]] pastor, Euler published 886 papers and his complete works consume about 90 volumes. The [[St. Petersburg Academy]], where Euler worked after been raised in [[Switzerland]] and spending some time in [[Berlin]], spent 30 more years after Euler died in continuing to publish his work.  Yet much of Euler's work was done when he was completely [[blind]].  

'''Leonhard Euler''' (April 15, 1707–September 18, 1783) was a devout [[Christian]] ([[Calvinist]]) who became the greatest [[mathematician]] of the eighteenth century and perhaps the most productive of all time.  Born in Switzerland to a [[Calvinist]] pastor, Euler published 886 papers and his complete works consume about 90 volumes. The [[St. Petersburg Academy]], where Euler worked after been raised in [[Switzerland]] and spending some time in [[Berlin]], spent 30 more years after Euler died in continuing to publish his work.  Yet much of Euler's work was done when he was completely [[blind]].  

Euler created [[Euler's formula]], a basis for complex analysis.  Euler also laid a foundation for what later became [[combinatorial topology]].

Euler created [[Euler's formula]], a basis for complex analysis.  Euler also laid a foundation for what later became [[combinatorial topology]].