By the 2000s, Bangladesh produced 80—100 films a year.
Traders and migrants from North India often spoke the language in Bengal, as did sections of the Bengali upper class.
The first railway in what is now Bangladesh began operating in 1862.
The head of government is the Prime Minister, who is invited to form a government every five years.
Most of it is less than 12 m 39 ft above sea level, and it is estimated that about 10% of its land would be flooded if the sea level were to rise by 1 m 3.
The , , , and are among the chief predators in the Sundarbans.