Chittagonian language in the context of "Ganges River dolphin"

Chittagong (/ˈtʃɪtəɡɒŋ/ CHIT-ə-gong), officially Chattogram (Bengali: চট্টগ্রাম, romanized: Côṭṭôgrām, IPA: [ˈt͡ʃɔʈːoɡram] , traditionally Bengali: চাটগাঁও, romanized: Cāṭgão; Chittagonian: চিটাং/সিটাং, romanized: Sitang), is the second-largest city in Bangladesh. Home to the Port of Chittagong, it is the busiest port in Bangladesh and the Bay of Bengal. The city is also the business capital of Bangladesh. It is the administrative seat of an eponymous division and district. The city is located on the banks of the Karnaphuli River between the Chittagong Hill Tracts and the Bay of Bengal. In 2022, the Chittagong District had a population of approximately 9.2 million according to a census conducted by the government of Bangladesh. In 2022, the city area had a population of more than 5.6 million. The city is home to many large local businesses and plays an important role in the Bangladeshi economy.

One of the world's oldest ports with a functional natural harbor for centuries, Chittagong appeared on ancient Greek and Roman maps, including on Ptolemy's world map. It was located on the southern branch of the Silk Road. In the 9th century, merchants from the Abbasid Caliphate established a trading post in Chittagong. The port fell to the Muslim conquest of Bengal during the 14th century. It was the site of a royal mint under the Delhi Sultanate, Bengal Sultanate and Mughal Empire. Between the 15th and 17th centuries, Chittagong was also a centre of administrative, literary, commercial and maritime activities in Arakan, a narrow strip of land along the eastern coast of the Bay of Bengal which was under strong Bengali influence for 350 years. During the 16th century, the port became a Portuguese trading post and João de Barros described it as "the most famous and wealthy city of the Kingdom of Bengal". The Mughal Empire expelled the Portuguese and Arakanese in 1666.

Chakma (/ˈtʃɑːkmə/; autonym: 𑄌𑄋𑄴𑄟𑄳𑄦 𑄞𑄌𑄴) is an Eastern Indo-Aryan language in the branch of the Indo-Iranian languages in the Indo-European language family, whose speakers are known as the Chakma or the Daingnet people. It has nearly 1 million speakers, with 60% residing in the Chittagong Hill Tracts (CHT) in Bangladesh and 35% spread across Arunachal Pradesh, Assam, Mizoram and Tripura in India. The remaining 5% live in Myanmar. The language has it own script, the Chakma script or the ajhapat (𑄌𑄋𑄴𑄟𑄳𑄦 𑄃𑄧𑄏𑄛𑄖𑄴), which is an abugida similar other South-east Asian scripts. It is mutually intelligible with the Chittagonian language.

Similarities of the Chakma language with Sanskrit, Maghadi Prakrit and with Pali is visible referring it to be a classical language. This suggests that the Chakmas have been present in the Indian subcontinent since ancient times. Cultural exchanges with neighboring communities have led to the adoption of Indo-Aryan and Arakanese terms. Studies suggest that the language may have originally been a Tibeto-Burman language before transitioning into an Indic language. However, there are abundant of vocabularies used in the Chakma language that do belong neither to Indo-Aryan nor Tibeto-Burman linguistic group, likely originating from their ancestral language. Historically, a Mongoloid group that settled in the Himalayan foothills spoke a Tibetan-related language but gradually incorporated Aryan vocabulary.

The Cinema of Bangladesh, locally known as Bangla cinema, is a diverse and vibrant entity, consisting of films produced across various regions in Bangladesh, each contributing its unique linguistic and cultural perspective. Beyond the dominant Dhaka based Bengali-language film industry Dhallywood (Bengali: ঢালিউড), which is a portmanteau of "Dhaka" and "Hollywood", Bangladesh is home to cinema in several other languages and dialects. For instance, Chakma cinema from Bandarban, Garo cinema from Sherpur, Meitei and Sylheti cinema from Sylhet, Chatgaiya cinema from Chattogram. These regional cinemas play a crucial role in preserving and promoting the linguistic and cultural heritage of the country. The dominant style of Bangladeshi cinema is melodramatic cinema, which developed from 1947 to 1990 and characterizes most films to this day. Cinema was introduced in Bangladesh in 1898 by the Bradford Bioscope Company, credited to have arranged the first film release in Bangladesh. Between 1913 and 1914, the first production company, Picture House, was opened. A 1928 short silent film titled Sukumari (lit. 'The Good Girl') was the first Bengali-produced film in the region. The first full-length film, The Last Kiss, was released in 1931.

Following the separation of Bangladesh from Pakistan, Dhaka became the center of the Bangladeshi film industry, and has generated the majority share of revenue, production and audiences for Dhallywood films. Mukh O Mukhosh, the first Bengali-language full-length feature film, was produced in 1956. During the 1970s, many Dhallywood films were inspired by Indian films, with some of the films being unofficial remakes of those films. The industry continued to grow, and many successful Bangladeshi films were produced throughout the 1970s, 1980s and the first half of the 1990s.

Chittagong District (Bengali: চট্টগ্রাম জেলা), (Chittagonian: Sitang/Chatga), officially Chattogram District, is a district located in south-eastern Bangladesh. It is a part of the Chittagong Division. Due to its geographical location, Chittagong is classified as a special district in Bangladesh. With its hills, sea, valleys, and forests, Chittagong is one of the most naturally beautiful regions in the country. Because of its natural beauty and diversity, it is often referred to as the "Queen of the East". The commercial capital of Bangladesh and the country's only two-dimensional city are both located in Chittagong District. In terms of establishment, this is the oldest district in Bangladesh, and by area, it is the second largest. The population of Chittagong District was 9,169,464 at the 2022 Census. The district has its own distinct language and culture. Due to its linguistic and cultural uniqueness, it is considered the most diverse district in Bangladesh. The language spoken by the people of this region is known as Chatgaiya. At present, over 15 million people speak this language. Not only in Chittagong, but also in Greater Chittagong – including Cox's Bazar and the Chittagong Hill Tracts – this is the principal language of communication. Chittagong District is bordered by Cox's Bazar to the south, the Chittagong Hill Tracts to the east, Feni District and the Indian state of Tripura to the north, and the Bay of Bengal to the west. The district is also home to the second-largest sea beach in Bangladesh after Cox's Bazar, known as Banshkhali Sea Beach. In addition, the longest hanging bridge in Bangladesh is located in this Chittagong district.

Rohingya (𐴌𐴗𐴥𐴝𐴙𐴚𐴒𐴙𐴝, Ruáingga, رُحَ࣪ڠۡگَ࣪ـݠـ‎‎, [rʊˈɜiɲɟə]) is an Indo-Aryan language belonging to the Indo-Iranian branch of the Indo-European language family, spoken primarily by the Rohingya people, who are from Rakhine State of Myanmar. It is an Eastern Indo-Aryan language belonging to the Bengali–Assamese branch, and is closely related to the Chittagonian language spoken in neighbouring Bangladesh. The Rohingya, Chakma and Chittagonian languages have a high degree of mutual intelligibility.

The Bengali-Assamese languages (also Gauda–Kamarupa languages) is a grouping of several languages in the eastern Indian subcontinent. This group belongs to the Eastern zone of Indo-Aryan languages. The languages in this group, according to Glottolog, include Assamese, Bengali, Bishnupriya, Chakma, Chittagonian, Hajong, Kharia Thar, Kurmukar, Mal Paharia, Noakhali, Rajbangshi, Rohingya, Sylheti, Tangchangya, Thar and Surjapuri.

The Chakma or Changhma people (Chakma: 𑄌𑄋𑄴𑄟𑄳𑄦, 𑄌𑄇𑄴𑄟), are an ethnic group and nation native to the Indian subcontinent and Western Myanmar. They are the largest indigenous group as well as the second largest ethnic group of the Chittagong Hill Tracts region of southeastern Bangladesh. They also form the majority in Chakma Autonomous District Council of Mizoram. Significant Chakma populations are found in the northeast Indian states of Arunachal Pradesh, Tripura, Assam and Rakhine State of Myanmar.

The Chakma possess strong ethnic affinities to Tibeto-Burman-speaking groups in Northeast India. Due to a historical language shift aimed at consolidating intertribal power, the Chakma adopted the Indo-Aryan Chakma language, which is closely related to Pali and to the Chittagonian language spoken in adjacent regions. Most modern Chakma people practice Theravada Buddhism, due to 19th-century reforms and institutionalisation by Queen regnant Rani Kalindi. In Myanmar, Chakma people are known as Daingnet and are one of the 135 officially recognised ethnic groups in Myanmar. They are also referred as "Saks", "Sakmas" or "Tsakmas".