. . . . "In this lecture Tate explains three of the prize problems and places them in historical context. These are among the most important unsolved problems in pure mathematics: the Riemann Hypothesis, the Conjecture of Birch and Swinnerton-Dyer, and the \"P versus NP?\" problem.\"" . . . "The millenium prize problems a lecture [given at the Clay Mathematics Institute Millenium meeting, Collège de France, Paris, May 24-25, 2000]" . . . . .