  Since the first observation in 1964, CP violation remains one of the most
elusive aspects of the standard model. The CDF collaboration has reported the
first evidence of CP violation in the B system using the world's largest sample
of $B \to J/\psi K^0_S $ decays. The direct measurement of
sin$(2\beta)$=0.79$^{+0.41}_{-0.44}$ (combined statistical and systematic
error) agrees with the standard model predictions. New data collected from the
B-factories and from the upgraded experiments at the Tevatron should allow a
more precise measurement of $\sin 2\beta$ in the near future.
