Abstract: | This article aims to outline and explain the development of twenty years of politics of memory in a city in Argentina. The configuration of institutions and social actors, the scope and limitations of their practices are described in order to understand the current timing of the trials of repressors of the last military dictatorship (1976–1983). In turn, the processes around the demand for justice and its impact on the city of La Plata, capital of the province of Buenos Aires, are analyzed, from the perspective of the so-called time of “outbreak of memory”, launched since the mid-1990s. |