Under the title From Mendel to postgenomics, the century of genetics, the Faculty of Experimental Sciences and Health of the Pompeu Fabra University of Barcelona, in collaboration with the Esteve Foundation, offered a lecture on April 25, 2003 to commemorate the 50th anniversary of the discovery of the structure of DNA. The lecture was imparted by professor and historian Hans-Jörg Rheinberger, Director of the Max-Planck Institute of History and Science of Berlin.