Antiquity
Remnants of civilization in the greater Bengal region date back four thousand years, when the region was settled by Dravidian, Tibeto-Burman, and Austro-Asiatic peoples. The exact origin of the word "Bangla" or "Bengal" is not known, though it is believed to be derived from Bang, the Dravidian-speaking tribe that settled in the area around the year 1000 BCE.
The kingdom of Gangaridai was formed from at least the 7th century BCE, which later united with Bihar under the Shishunaga, Nanda, Mauryan, Sunga, Meghavahana and Kanva Empires. Bengal was later part of the Gupta Empire and Harsha Empire from the 3rd to the 6th centuries CE. Following its collapse, a dynamic Bengali named Shashanka founded an impressive short-lived kingdom. After a period of anarchy, the Bengali Buddhist Pala dynasty ruled the region for four hundred years, followed by a shorter reign of the Hindu Sena dynasty.
Medieval European geographers located paradise at the mouth of the Ganges and although this was overhopeful, Bengal was probably the wealthiest part of the subcontinent until the 16th century. The area's early history featured a succession of Hindu empires, internal squabbling, and a tussle between Hinduism and Buddhism for dominance.
Islam was introduced to the Bengal region in the 12th century by Arab Muslim merchants; Sufi missionaries, and subsequent Muslim rule helped spread Islam throughout the region. Bakhtiar Khilji, a Turkish general, defeated Lakshman Sen of the Sena dynasty and conquered large parts of Bengal in the year 1204. The region was ruled by several sultans, Hindu states and land-lords-Baro-Bhuiyans for the next few hundred years. By the 16th century, the Mughal Empire controlled Bengal, and Dhaka became an important provincial centre of Mughal administration. From 1517 onwards, Portuguese traders from Goa were traversing the sea-route to Bengal. Only in 1537, were they allowed to settle and open customs houses at
