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On This Day ...

Important events from the history of math that happened on this day:

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August 5th

1775 Montucla served as Royal Censor and anonymous editor for a new edition of Jacques Ozanam's book on mathematical recreations. The first edition had been published in 1694.

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Jean Montucla
Jacques Ozanam
1802 Neils Henrik Abel born in Stavanger, Norway. Before going to university in 1821, he attacked the problem of the solution of the quintic equation. He submitted a solution for publication but found an error before it was published. In 1823 he proved the impossibility of a radical expression that solves fifth or higher degree equations.

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Niels Henrik Abel
Abel-Ruffini Theorem
1910 Julius Petersen died in Copenhagen, Denmark. Best known for the Petersen graph, he worked in graph theory and geometry.

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Julius Petersen

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