The observation and analysis of the revolution processes in Tunisia, must take into account the three principal elements (actors, spaces, chronology), which draw together a dynamic map of the revolution showing a direct correlations between the processes of spatial (enclosure and distance), economic (investments, infrastructures and development), and social (poverty, unemployment and exclusion) marginalization, and the dynamics of the revolution. One evidences here: the revolution process went on first in the marginalized or peripheral regions (South, Center and West of the country and big cities' working-class suburbs), and was led, at first, by the small farmers and landless, workers and, more generally, marginalized and poor people. The concept of marginalization must be considered here as continuous processes of dispossession/accumulation that operate in the framework of the double competition over resources and services between social groups, territories and economic sectors. Thus, one could say that the situation of marginality has created the conditions or the 'opportunity' and the context for resistances and protests that have been proliferating and 'accumulating' over the years. My presentation aims to revisit the revolutionary processes in Tunisia, 3 years after the fall of dictatorship in January 14th 2011, within the concepts of social marginalization and dispossession.