The document provides an overview of the history of Bangladesh in 3 parts:
1) It discusses the arrival of Muslims in Bengal in the 12th century and the rule of various dynasties until the 18th century.
2) It then covers the British rule over Bengal from the 18th century until partition in 1947.
3) The final part summarizes the creation of Pakistan and Bangladesh, the language movement, the war of independence in 1971 and political developments since.