Professor C.N. Yang is a living legend in Physics. The depth and breadth of his contributions are simply staggering. He is at the origin of the discovery of parity violation, Yang-Mills theory (with which we write the basic interactions in the standard model), the Yang-Baxter equation in the theory of integrable systems, the applications of topology in physics, and a long etcetera. He is also an excellent speaker. It is rare to have people of his stature come and visit CERN. It will be a memorable colloquium.
