Fourty years ago, in May 1981, with François Mitterrand's election, some people were letting themselves dream about a better life while others were predicting the coming of soviet tanks upon the Champs-Élysées. If we gladly remember the turning point of austerity in 83, there were also the wage rises, the fifth week of paid leave, the abolition of death penalty, the decriminalisation of homosexuality, or the advent of independent radio stations. Rare archives and accounts by those who were at the heart of this story give an overview of it and shed light on lesser-known aspects.