|Province of Pakistan|
|- 1956-1957||Mushtaq Ahmed Gurmani|
|- 1956-1957||Abu Hussain Sarkar|
|- March 23, 1956||Constitution of Pakistan|
|- March 26, 1971||Declaration of Independence|
|- December 16, 1971||Secedes from Pakistan|
East Pakistan (East Bengal) was a province of the Pakistan, alongside with the province of West Pakistan. Before 1956 it had been a single province within the Pakistan under the name of East Bengal. In 1971 it declared independence and with the support of the Indian army East Pakistan seceded to form the People's Republic of Bangladesh.