Former subdivisions of Pakistan
From 1947 to 1971, Pakistan was split into two areas (East and West Pakistan) that were 1600 kilometres apart separated by India in the middle. The eastern wing had one province - East Bengal which included the Sylhet District from the former Indian province of Assam, and also the former district of East Pakistan province. The western wing was formed from three Governor's provinces (North-West Frontier Province, West Punjab and Sind (historical), one Chief Commissioner's Province (Baluchistan), several Princely states and parts of occupied Kashmir.