At the International Congress of Mathematics in the year 1900 in Paris, David Hilbert gave a talk in which he stated 23 open problems that he regarded central for the development of mathematics. These became famous as Hilbert’s 23 problems and have indeed considerably influenced mathematics in the 20th century.
Felix E. Browder. Mathematical Developments Arising from Hilbert Problems. Proceedings of Symposia in Pure Mathematics. XXVIII.2. American Mathematical Society.
Wikipedia, Hilbert’s problems
Last revised on June 14, 2016 at 16:07:21. See the history of this page for a list of all contributions to it.