In the previous studies of Bunun perception of history, it is emphasized that the concept of 'image' rather than 'event' is of central importance. As a result, anthropologists have paid little attention to historical events. This article argues for the significance of the analysis of event in understanding how the Bunun perceive and represent the past in their culturally specific ways. Focusing on three main historical events in the Japanese colonial period in the area of Haituan Township, Taitung County, I use both ethnographic data and historical records to explore the relationships between memory and history, and to examine how such relationships are transformed after the recent emergence of new forms of commemoration, such as the construction of statue and monument, and the so-called 'root-searching trips' to the ancestral sites. It is stressed that the Bunun's senses of the past and their conceptualization of history should not be treated as a bounded, static tradition. Rather, they are closely related to the Bunun's experience of being ruled by colonial authorities equipped with literacy and written history, as well as the political and cultural changes in the wider Taiwanese society.