This article examines the history of International Women's Day (IWD) in Greece from its first celebration in 1924 until 2010. IWD was introduced in Greece by the KKE (Communist Party of Greece) and remained a communist ritual for fifty years. After the fall of the military dictatorship in 1974, the anniversary gradually acquired a wide acceptance and has since been adopted by feminist groups and organizations, trade unions, and parties from the entire political spectrum. The article follows the transformations of the celebration, explores its nebulous genealogy and the myths about its origins, and discusses its impressive ability to survive in diverse socio-political contexts.