The different views that make up the book come from activism and academia. Some texts have an evocative and testimonial tone. Others are more oriented towards finding meeting points and explanations about the Corpus Thursday massacre and its effects on Mexican society at the time and beyond. The diversity of tones gives it nuances that do not necessarily fit with academic formalities in all cases. The collective effort presented here is carried out with the pen of researchers and testimonies committed to the reconstruction of these events that have shaken contemporary Mexico, of which it is necessary to speak. Memory is made of the pain narrated here.