Ulama Network of North Sumatera in Developing Islam in North Sumatera
North Sumatera Islam is often left out of Nusantara Islāmic studies. North Sumatera has not become a serious concern of the reviewers of the Islāmic history of the archipelago due to several things. First, North Sumatera Islam is understood as a continuation of Aceh Islam. Secondly, it could be that there is a suspicion that North Sumatera has been identified as a Christian territory from the beginning, although this argument is not strong. This study aims to find out about the communication between fellow scholars in developing science in North Sumatera. Then researchers will look at the role of educational institutions in the development of Islam in North Sumatera. The method used in this research is descriptive qualitative research, which aims to understand social problems, events, the role of interaction, and community groups. The qualitative approach is used by focusing on the social conditions surrounding the existence of the Ulama, who lived in his day, which became the basis in compiling the historical events of the ulama network in the development of Islam in North Sumatera in the XX century. The results of this study are; first, the scientific network among fellow North Sumatera scholars is very good; it shows from the shape of the education system. This can be seen in connection with his teachers in the Middle East. Secondly, the role of Islāmic boarding schools Musthafawiyah and Maktab Islamiyah is very important, including as a producer of scholars in North Sumatera and a center for the study and development of Islamic Law studies in the midst of society.