"This study is focused on the modalities of transmission of knowledge related to historical events. It focuses on a generation of young Czechs in the age of 12 – 25 years. The data were gathered during 11 focus groups that took place with students on each of the three levels of Czech formal educational system represented by elementary schools, secondary schools and universities. The focus group script revolved around 4 significant historical events reaching almost 70 in the past: the terrorist attack in New York in September 2001, the fall of the communist regime in the Czech Republic in November 1989, the Warsaw Pact invasion of Czechoslovakia in August 1968 and the Czechoslovak coup d’état in February 1948, during which the Communist Party of Czechoslovakia took over. The data were analyzed by using Adele Clarke’s situational analysis, focusing on the particular elements of situations in which knowledge about the events is transmitted. Among the elements we typically found narration of parents and grandparents, television broadcasting, films and series and various internet sources. However, we also found that the configuration of these elements with regard to each event differs and that there is a distinctive pattern of dropping off information sources while moving further into the past. On the other hand, the data also hint at a process of gradually adopting the shared knowledge of historical events as actors get older. As a result, we can observe the simultaneous processes of forgetting and growing into the collective memory." (Abstract)