Future Appointment Policy for Non-Scientific and Engineering Staff 1960 1960 CERN's first foundation stone CERN Courier vol 44 no 8 : October 2004 1 24 CERN50 1952 1975 1955 On 10 June 1955, Felix Bloch, CERN's first Director-General, laid the foundation stone on the Laboratory site, watched by Max Petitpierre, then President of the Swiss Confederation. PS ring : excavation work 1955 1955 Excavation and lean-concrete lining of a first section of the PS ring tunnel.