In Dhaka, East Pakistan (present Bangladesh) police open fire on a procession of students that was demanding the establishment of Bengali as the official language, killing four people and starting a country-wide protest which led to the recognition of Bengali as one of the national languages of Pakistan. The day is later declared as "International Mother Language Day" by UNESCO.

Sheikh Mujibur Rahman, announces the ''Six Points'' in Karachi as the election manifesto of Awami League, that later led to formation of Bangladesh.

Bhola cyclone: A 150-mph tropical cyclone hits the densely populated Ganges Delta region of East Pakistan (now Bangladesh), killing an estimated 500,000 people in one night. This is regarded as the 20th century's worst natural disaster.

The People's Republic of Bangladesh forms, under Sheikh Mujibur Rahman at Mujibnagor.

Pakistan severs diplomatic relations with India following New Delhi's recognition of Bangladesh.

Sheikh Mujibur Rahman returns to the newly independent Bangladesh as president after spending over nine months in prison in Pakistan.

East Pakistan renames itself Bangladesh.

India and Bangladesh sign a friendship treaty.

National Assembly of Pakistan passes a resolution on the recognition of Bangladesh.

Organisation of the Islamic Conferencesummit begins in Lahore, Pakistan. Thirty-seven countries attend and twenty-two heads of state and government participate. It also recognizes Bangladesh.

Bangladesh, Grenada and Guinea-Bissau join the United Nations.

Bangladesh's founder Sheikh Mujibur Rahman is killed along with most members of his family during a military coup.

Rahima Banu, a 2-year old girl from the village of Kuralia in Bangladesh, is the last known person to be infected with naturally occurring smallpox.

In Bangladesh, a joint force of people and soldiers took part in an uprising led by Col. Abu Taher that ousted and killed Brig. Khaled Mosharraf. The uprising, hailed as National Revolution and Solidarity Day, also helped Gen. Ziaur Rahman (later President of Bangladesh) to get freed from the house arrest that was enforced by Mosharraf four days ago amid a coup d'état.

Bangladesh is hit by a tropical cyclone and storm surge, which kills approximately 10,000 people.

convert 1 hailstones fall on the Gopalganj district of Bangladesh, killing 92. These are the heaviest hailstones ever recorded.

A cyclone strikes the Chittagong district of southeastern Bangladesh with winds of around 155 mph, killing at least 138,000 people and leaving as many as 10 million homeless.

Severe thunderstorms and a tornado in Bangladesh kill 600 people.

Cyclone Sidr hit Bangladesh, killing an estimated 5000 people and destroyed the world's largest mangrove forest, Sundarbans.

BDR massacre in Pilkhana, Dhaka, Bangladesh. 74 people are killed, including more than 50 army officials, by Bangladeshi Border Guards inside its headquarters.