Title: Social Network Extraction and Exploration from Historical Correspondences Abstract: Historical correspondences, typically in the form of letters, are considered as a primary source for studying history. These correspondences provide an in-depth view of the social, professional and cultural life of people during that time. By extracting the social network embedded in the correspondences, we can not only explore the information about correspondents and their roles in the development of history, but also obtain valuable insights into opinions and trends over time. In this talk, a framework will be introduced for social network extraction and exploration from historical correspondences . The social network approach of analyzing metadata in historical correspondences will be presented and the machine translation approach on historical texts will be covered during the talk.