A number of student protesters demanding the establishment of Bengali as an official language were killed by police in Dhaka, East Pakistan.

The Bengali language movement was a political movement in East Bengal in 1952, advocating the recognition of the Bengali language as a co-lingua franca of the then-Dominion of Pakistan to allow its use in government affairs, the continuation of its use as a medium of education, its use in media, currency and stamps, and to maintain its writing in the Bengali alphabet and Bengali script.

Bengali, also known by its endonym Bangla, is an Indo-Aryan language belonging to the Indo-Iranian branch of the Indo-European language family. It is native to the Bengal region of South Asia. With over 242 million native speakers and another 43 million as second language speakers as of 2025, Bengali is the sixth most spoken native language and the seventh most spoken language by the total number of speakers in the world.

Dhaka, formerly spelled as Dacca, is the capital and largest city of Bangladesh. It is one of the largest and most densely populated cities in the world with a density of about 34,000 citizens per square kilometers within a total area of approximately 300 square kilometers. Dhaka is a megacity, and has a population of 10.2 million as of 2024, and a population of over 23.9 million in Dhaka Metropolitan Area. It is widely considered to be the most densely populated built-up urban area in the world. Dhaka is an important cultural, economic, and scientific hub of Eastern South Asia, as well as a major Muslim-majority city. Dhaka ranks third in South Asia and 39th in the world in terms of GDP. Lying on the Ganges Delta, it is bounded by the Buriganga, Turag, Dhaleshwari and Shitalakshya rivers. It is also the largest Bengali-speaking city in the world.