Battle of Plassey, 1757
1757 · Plassey
Language Movement, 1952
1952 · Language
Liberation War, 1971
1971 · Liberation
Partition of Bengal and Swadeshi movement, 1905
1905 · Partition

Discover Bengal · Unfolded

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Est. 1947 · BengalA Bilingual Archive

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Ancient and Pre-Sultanate Bengal

8th century

Major

Construction of Somapura Mahavihara

Ancient and Pre-Sultanate Bengal

Somapura Mahavihara at Paharpur emerged in the 8th century as one of the largest monasteries south of the Himalayas and an important intellectual center in pre-Islamic Bengal.

c. 800-1100

High

Chandra-Deva-Mainamati Regional Polity

Ancient and Pre-Sultanate Bengal

Between roughly the eighth and eleventh centuries, the Chandra and Deva dynasties shaped southeastern Bengal around Samatata, Harikela, and the Mainamati-Lalmai zone. Their inscriptions, monasteries, and regional political networks show that Bengal’s pre-sultanate history was not only centred on the Pala-Sena heartland.

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Colonial Rule and Resistance

Language, autonomy, and liberation

c. 1095-1205

High

Sena Rise and Lakshman Sen Court Culture

Colonial Rule and Resistance

The Sena period marked dynastic expansion, consolidation of elite Hindu court culture, and notable patronage of Sanskrit and Bengali literary-intellectual activity, especially under Lakshman Sen.

Ancient and Pre-Sultanate Bengal

c. 1178-1204

Major

Late Sena Transition Before the 1204 Conquest

Ancient and Pre-Sultanate Bengal

The late Sena phase under Lakshmanasena (c. 1178-c. 1205) represents the final major pre-1204 court-centered order in Bengal, ending with his expulsion from Nadia by Bakhtiyar Khalji.

Transition to Sultanate Formation

1204-1205

Major

Bakhtiyar Khalji's Conquest of Nadia

Transition to Sultanate Formation

Ikhtiyar al-Din Muhammad Bakhtiyar Khalji's capture of Nadia, associated with 1204-1205, marked a major turning point in Bengal's political history. The fall of the Sena capital center and subsequent movement toward Lakhnauti/Gaur shifted the region's ruling structure and opened a new phase of Turkic-led state formation in Bengal.

Historical Transitions

State, society, and political change

1230s

High

Bengal under Delhi Governorates and Fragmentation

Historical Transitions

Bengal under Delhi Governorates and Fragmentation was a significant turning point in the political and social trajectory of Bengal/Bangladesh.

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