The document summarizes the Bengali Language Movement in Pakistan between 1947-1956. It describes how Muhammad Ali Jinnah declared Urdu as the sole official language of Pakistan against opposition. In 1952, Khawaja Nazimuddin further defended this policy. In response, the All-Party Central Language Action Committee was formed and called for protests. On February 21st, police opened fire on protesting students in Dhaka, killing several. This ultimately led to Bengali being declared a official language in 1956. The movement established Bangladeshi nationalism and February 21st is now celebrated as International Mother Language Day.