B. Read the text.

21 February is a memorable day in our national history. We observe the day every year as International Mother Language Day. The day is a national holiday.

On this day, we pay tribute to the martyrs who laid down their lives to establish Bangla as a state language in undivided Pakistan in 1952, The struggle to achieve our language rights is known as the Language Movement.

The seed of the Language Movement was sown on 21 March 1948 when Mohammad Ali Jinnah, the Governor General of Pakistan, declared in a public meeting in Dhaka that Urdu would be the only state language of Pakistan. The declaration raised a storm of protest in the eastern part of the country. The protest continued non-stop, gathering momentum day by day. It turned into a movement and reached its climax in 1952. The government outlawed all sorts of public meetings and rallies to stop it.

The students of Dhaka University defied the law and brought out a peaceful protest procession on 21 February 1952. When the procession reached near Dhaka Medical College, the police opened fire on the students, killing Salam, Rafiq, Barkat, Safiur and Jabbar. As a result, there were mass protests all over the country and the government had to declare Bangla as a state language. This kindled the sparks of independence movement of Bangladesh.