Three of this year's Nobel Laureates have participated in ICTP activities. Masatoshi Koshiba (Japan), Nobel prize winner in physics, whose first visit to ICTP took place in 1987, last lectured at the Centre at the Fifth School on Non-Accelerator Particle Astrophysics in 1998; Kurt Wuthrich (Switzerland), Nobel prize winner in chemistry, lectured at the College in Biophysics in 1992, 1994, and 1996; and Sydney Brenner (UK), Nobel prize winner in medicine, lectured at the Symposium on Contemporary Physics in 1968, one of the seminal events in ICTP history.