We discuss the history of CP violation and its manifestations in kaon
physics, its explanation in terms of phases of the Cabibbo-Kobayashi-Maskawa
matrix describing charge-changing weak quark transitions, predictions for
experiments involving B mesons, and the light it can shed on physics beyond
the Standard Model.Comment: 13 pages, LaTeX, 8 figures, Invited talk presented at XXI Brazilian
National Meeting on Particles and Fields, Sao Lourenco, Minas Gerais, October
23--26, 2000, proceedings to be published in a special issue of the Brazilian
Journal of Physics. Further small changes in two figure captions and
acknowledgment