In this article, I defend the idea that any political community has the duty to remember a past of injustice and suffering, when it has initiated a process of transition to a democratic inclusive and equalitarian regime. In the first section, I briefly develop the notions of 'inclusive democracy', 'moral luck’, and ''taking responsibility' that will turn the framework to discuss the duty to remember a troublesome past. In the second section, and following Pablo de Greiff's reconstruction of the arguments of that duty, I claim that the foundation of that duty is based on a past-oriented argument. In addition, I argue that this past-oriented argument responds better to democratic values than de Greiff’s present-oriented argument from am ethical-political point of view.