The day that police opened fire on a group of students protesting the exclusion of Bengali as an official language of Pakistan marked a turning point in the Bengali Language Movement. At the time, Pakistan was made up of two provinces, East and West Pakistan. Though East Pakistan was the more populous province, the government favored West Pakistani interests, as evidenced by its attempt to make Urdu the only official language of the dominion. When was Bengali added as an official language? Discuss