The Shaheed Minar monument commemorates those who lost their life during the protests on 21 February 1952
Language Movement Day or Language Revolution Day (Bengali: ভাষা আন্দোলন দিবসBhasha Andolôn Dibôs), which is also referred to as Language Martyrs' Day or Martyrs' Day (Bengali: শহীদ দিবসShôhid Dibôs), is a national day of Bangladesh to commemorate protests and sacrifices to protect Bengali as a national language during Bengali Language Movement of 1952.
In 1952, the emerging middle classes of then East Bengal underwent an uprising known later as the Bangla Language Movement. Bangladeshis were initially agitated by a decision by the Central Pakistan Government to establish Urdu, a minority language spoken only by the supposed elite class of West Pakistan, as the sole national language for all of Pakistan. The situation was worsened by an open declaration that "Urdu and only Urdu will be the national language of Pakistan" by the governor, Khawaja Nazimuddin.
In Silchar, India, eleven people were killed by police firing on 19 May 1961 when protesting legislation that mandated the use of the Assamese language. Bengalis in Assam and north-east India observe 19 May as Language Movement Day to remember the 11 Bengalis who were killed on the day by police fire in Silchar Railway Station.