Eugène Charles Catalan
Eugène Charles Catalan was a French and Belgian mathematician who worked on continued fractions, descriptive geometry, number theory and combinatorics. His notable contributions included discovering a periodic minimal surface in the space ; stating the famous Catalan's conjecture, which was eventually proved in 2002; and introducing the Catalan numbers to solve a combinatorial problem.
30 May 1814
Born on the same birth date (30 May 1814): Mikhail Bakunin
Born on the same birth day (30 May): Ahmad Elrich • Alexander Archipenko • Antonina Houbraken • Bertrand Delanoë • Bruno Gröning • Clint Bowyer • Devendra Banhart • Gianmaria Bruni • René Barrientos • Sven Pipien • Ted McGinley • Tonya Pinkins • Will Peltz
Born in the same month (May 1814): Adams George Archibald • Adolf von Henselt • Amalia Lindegren • Charles Beyer • John Brougham • John Rudolph Niernsee • Mikhail Bakunin