Abstract. The objective of this interview is to study the history of the Large Hadron Collider in the LEP tunnel at CERN, from first ideas to the discovery of the Brout-Englert-Higgs boson, seen from the point of view of a member of CERN scientific committees, of the CERN Council and a former Director General of CERN in the years of machine construction.1 The SppS collider and LEP L. B. During the 1980s, at the time when LEP, the Large Electron Positron collider, was being completed, you began to be deeply involved with CERN. . . 1 L. M. Nicola Cabibbo had been in the Scientific Policy Committee (SPC) in the 1970s, when they had advised CERN to approve the construction of the protonantiproton collider proposed by Carlo Rubbia and Simon van der Meer to search for the Intermediate Vector Bosons. It was a difficult machine and the positive recommendation of the SPC was a far-sighted decision.The pp-project of Rubbia, initiated in 1976, was based on the conclusion that with the unified theory of the electroweak interactions (Glashow, 1961;Weinberg, 1967;Salam, 1968) and the measurement of sin 2θ from Gargamelle, the predicted mass of the charged intermediate vector boson W was around 70 GeV, requiring a proton-antiproton collider to reach such energies. However, at FermiLab, Bob Wilson was not interested in the project. Rubbia, after strong opposition, convinced finally Léon van Hove and John Adams of a pp collider, at the CERN SPS, based on the Stochastic Cooling project of Simon van der Meer.The SppS started operation in 1981, after only 5 years of construction. An immediate outcome was the appearance of narrow jets even in a hadron machineThe text presented here has been revised by the authors based on the original oral history interview conducted by Luisa Bonolis and recorded in Rome, Italy, 1-3 March 2016. a e-mail: lbonolis@mpiwg-berlin.mpg.de 1 We are indebted to Prof. Dieter Haidt for very informative exchange on the arguments discussed in this section.