Urdu has a significant heritage in Bangladesh, in particular Old Dhaka. The language was introduced to Bengal in the 17th-century. Traders and migrants from North India often spoke the language in Bengal, as did sections of the Bengali upper class. Urdu poets lived in many parts of Bangladesh. The use of Urdu became controversial during the Bengali Language Movement, when the people of East Bengal resisted attempts to impose Urdu as the main official language. In modern Bangladesh, the Urdu-speaking community is restricted to the country's Bihari community (formerly Stranded Pakistanis); and some sections of the Old Dhakaiya population.