Bengali language movement

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 Dominion of Pakistan. The movement wanted 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.

Source: Wikipedia — Bengali language movement (CC BY-SA 4.0)