The “cultural turn” in socio-humanitarian knowledge led to an intensive analysis of collective representations, including ideas about the past, and at the border of the 20th and 21st centuries the “memorial turn” emphasized the need of the discussions about such analytical category as an event, which acquired a special epistemological status. In “memorial studies”, the principal cognitive attitude is to take into account the socio-historical context and its spatio-temporal dynamics, the probabilistic nature of events and the subjectivity of the actors.