This course examines the development of Indonesian history in the early 20th century, especially from 1900 to independence in 1945, including ethical politics, the social structure of society in the early 20th century, the development of infrastructure and communication and the Indonesian language in the early 20th century. This course examines and understands Indonesian nationalism and its development related to the struggle for independence in Indonesia, examines and understands the movement patterns of political organizations and parties as tools of the nation‘s struggle, starting from Budi Utomo, Sarekat Islam, Indische Partij, Perhimpunan Indonesia, PKI, PNI, Partindo , Gerindo, Petisi Sutarjo and Gapi, examine and understand the development of Indonesia during the Japanese occupation until Indonesia achieved and proclaimed independence in 1945. Learning for the Indonesian History 1900-1945 course is carried out using problem based learning, out-of-class lectures, discussions, assignments and portfolios. . Assessment using written tests (UTS and UAS) and portfolio.