Our project aims to identify and characterize the formation of inequalities in their multiple dimensions up to the threshold of retirement, to analyze their evolution during old age, and to understand the way in which social and family resources can contribute to modulate them. While statistical publications tend to hide the variations within the elderly population, in particular those related to social background, the project will specifically analyze these inequalities according to life courses and social positions. These inequalities will be studied according to gender, social class as well as occupational, family, residential and migratory trajectories. The cohorts selected for analysis will be those born between 1920 and 1959, reaching retirement age between the 1980s and today. Comparing them intra- and intergenerationally will allow us to understand the effects of economic, legal and social changes on inequalities among retirees.