The 1970s: great works In the seventies, which were marked by the direct link to the European network thanks to the automatic change of axel gauge, the company moved its warehouses and general workshops to the new base in El Prat de Llobregat (Barcelona). These were years of great urban infrastructures, of the opening of the Cinturón de Ronda ring road around Barcelona, the first urban Spanish toll motorway, and of the underground networks, amongst other major works. 1973 Dark Side of the Moon, by Pink Floyd, broke records in Europe 1976 Nadia Comaneci, star of the Montreal Olympic Games 1978 The first test-tube baby was born in Great Britain 1979 Mother Teresa of Calcutta was awarded the Nobel. Peace Prize