East Bengal (/bɛnˈɡɔːl/; Bengali: পূর্ব বাংলা/পূর্ববঙ্গ Purbô Bangla/Purbôbongo) was the eastern province of the Dominion of Pakistan, which covered the territory of modern-day Bangladesh.

It was dissolved in 1955 and replaced by East Pakistan during the One Unit Scheme implemented by Prime Minister Mohammad Ali of Bogra.

Between 1905 and 1911, a province called Eastern Bengal and Assam existed in the region as part of the British Indian Empire.

In May 1946, Rohingya Muslim leaders met with Muhammad Ali Jinnah, and asked for a formal annexation of the Mayu region.

[2] The District of Sylhet in Assam Province also voted to reunite with the rest of East Bengal, and the Muslim League's campaign played a great role in facilitating this.

However, a large part of Sylhet's Karimganj subdivision was barred due to Abdul Matlib Mazumdar's delegation.

As a result of these mandates, the Mountbatten Plan and Radcliffe Line established East Bengal as a province of the newly formed Dominion of Pakistan in August 1947.

Nazimuddin was a senior leader of the Muslim League and a close confidante of Pakistan's founder Muhammad Ali Jinnah.

His refusal sparked fierce protests among East Bengalis who comprised the majority of Pakistan's population.

According to some sources, Amin had strained relations with the federal government, including Prime Minister Liaquat Ali Khan and Governor General Khawaja Nazimuddin.

The new party later dropped the word Muslim, fashioned itself as secular and courted votes from East Bengal's large non-Muslim minorities.

In 1953, Prime Minister Khawaja Nazimuddin's government was dismissed by Governor General Ghulam Muhammad, in spite of enjoying the confidence of a majority in the Constituent Assembly of Pakistan.

In the case of Federation of Pakistan v. Maulvi Tamizuddin Khan, the speaker of the dissolved constituent assembly challenged the governor general's decision in the Sindh High Court.

The case proceeded to the apex court- the Federal Court of Pakistan- where Justice M. Munir ruled in favour of the governor general.

The dismissal of the prime minister and assembly was one of the first major blows to democracy and the rule of law in the Pakistani Union.

The East Bengal Regiment was formed on 15 February 1948 following Pakistan's independence and transition from post British rule.

The spread of Islam in East Bengal was more the result of conversion than conquest; dissatisfied with Buddhism and opposed to Hinduism, which put the majority of the population of East Bengal into the lower caste, vast numbers of Bengalis were attracted by the Islamic doctrine of the equality of all men before God.

[15] In Bangladesh, there's exist a blending culture of Hindu, Muslim, Buddhist, folk religion, deities and practices.