“The institutions of stupor. Review of event sociologies”. This article argues that events, deemed to be defined through the scope of contingency and disruption, are actually tied to a strong institutional framework that greatly constrains what could be done and said during the event. A literature review shows that social sciences should take better account of historical and conventional dimensions of events. By putting forward proposals to study the infrastructure of events, the article’s goal is to specify a complementary analysis of the object "event", through the prism of historical sociology and sociology of institutions.