I have written that the present State of Bengal ,India and Bangladesh date back to ancient times.
They are at least 25000 years old.
I had written a detailed article on the Dravidian origin of Bengalis.
Bengal region was founded by Vanga
‘The founders of five eastern kingdoms, which included: Angas, Vangas, Kalingas, Pundras and Suhmas shared a common ancestry. They were all adopted sons of a king named Vali (Bali), born by a sage named Gautama Dirghatamas, who lived in Magadha close to the city of Girivraja.
References in Mahabharata.
At (6:9) the Angas, the Vangas and the Kalingas were mentioned as close kingdoms in Bharata Varsha (Ancient India). All regions of sacred waters and all other holy palaces there were in Vanga and Kalinga, Arjuna visited all of them, during his pilgrimage lasting for 12 years throughout the ancient India.
The founders of five eastern kingdoms, which included: Angas, Vangas, Kalingas, Pundras and Suhmas shared a common ancestry. They were all adopted sons of a king named Vali (Bali), born by a sage named Gautama Dirghatamas, who lived in Magadha close to the city of Girivraja….
The kings of Anga, Vanga and Pundra were mentioned as attending the court of Yudhishthira at (2:4). The Vangas, Angas, Paundras, Odras, Cholas, Dravidas and Andhrakas were mentioned to be giving tribute to Yudhishthira (3:51). The Angas, the Vangas, the Punras, the Sanavatyas, and the Gayas—these good and well-born Kshatriyas distributed into regular clans and trained to the use of arms, brought tribute unto king Yudhishthira by hundreds and thousands. The Vangas, the Kalingas, the Magadhas, the Tamraliptas, the Supundrakas, the Dauvalikas, the Sagarakas, the Patrornas, the Saisavas, and innumerable Karnapravaranas, were found waiting at the gate (2:51)’
Now the reference in Ramayana Kishkindakanda Sarga 41,where Sugreeva directs army led by Angada,which included Hanuman about Bengal.
Bengal , called Vanga desa, was founded by Vanga.
‘The Vanga Kingdom was an ancient seafaring thalassocracy during the Late Vedic period on the Indian Subcontinent, which originated in the region of Bengal. The boundary of the kingdom was naturally formed by the Padma and Bhagirathi rivers in the West, North and East; while the South was bounded by the Bay of Bengal. ‘
‘Stone Age tools dating back 20,000 years have been excavated in the state. Remnants of Copper Age settlements in the Bengal region date back 4,000 years.The original settlers spoke non-Aryan languages— they may have spoken Austric or Austro-Asiatic languages like the languages of the present-day Kola, Bhil, Santhal, Shabara, and Pulinda people. At a subsequent age, peoples speaking languages from two other language families— Dravidian and Tibeto-Burman—seem to have settled in Bengal. Archaeological discoveries during the 1960s furnished evidence of a degree of civilisation in certain parts of Bengal as far back as the first millennium BC.
‘tathaa vangaan kalingaam ca kaushikaan ca sama.ntataH |
anviikSya daNDaka araNyam sa parvata nadii guham || 4-41-11
nadiim godaavariim caiva sarvam eva anupashyata |
tathaiva aandhraan ca puNDraan ca colaan paaNDyaan keralaan || 4-41-12
11, 12. tathaa= like that; vangaan kalingaam ca=, Vanga, Kalinga [kingdoms,] also; sam antataH= verily, at its fringes; available; kaushikaan ca= Kaushika [territories,] also; you search and then; sa parvata nadii guham daNDaka araNyam = with, mountains, rivers, Dandaka, forest, caves; anviikSya= on seeing – on searching Dandaka; godaavariim nadiim caiva= Godavari, river, also, thus; tathaiva= like that; aandhraan ca= Andhra territory; puNDraan ca colaan paaNDyaan keralaan= Pundra, Chola, Paandya, Kerala [provinces]; sarvam eva= all of them; anu pashyata= closely, see – make a through search.
“Like that Vanga, Kalinga territories shall be searched along with Kaushika territories available on their fringes, then cast about the Dandaka forest all over its mountains, rivers, and its caves, then River Godavari that courses through Dandaka forest, and then the provinces of Andhra, Pundra, Chola, Paandya, Kerala are to be searched thoroughly. [4-41-11, 12]
Some other mms have Matsya desha in this verse instead of the Vanga desha. The Vanga is the present day Bengal and this territory retained its epical name, but while pronouncing it becomes banga because the Sanskrit grammar allows to pronounce or write va as ba by the rule va ba yoH abhedaH and thus it is called Baangla or Bengal as British used to call. Kaushika in some other mms is read as kaashika. Kalinga is Orissa which touches Bengal at its north, and it is the Kie-ling-kia as said by Huet Tsang.’