Book excerpt: "Eurocommunism constitutes a 'moment' of great transformation connecting the past and present of the European Left. Left-wing politics effected a definitive transition to a thoroughly different paradigm in the wake of 1968 - a pivotal year of social revolt and rethinking that caused a divide between radical, progressive and socialist thinking in western and southern Europe and the Soviet model. Communist parties in Italy, France, Spain and Greece changed tack, drew on the dynamics of social radicalism of the time and became associated with political moderation, liberal democracy and negotiation rather than contentious politics, forging a movement that held influence until the early 1980s"--