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Black Hole of Calcutta

Dungeon used in 1756 to hold British and Indian prisoners

  • 12 min read
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Through East India Company, British people and Indian people


Background

22°34′24″N 88°20′53″E / 22.573357°N 88.347979°E

Fort William was built to safeguard the East India Company’s trade in Calcutta, the chief city of the Bengal Presidency. In 1756, amid rising tensions with the French East India Company due to the global Seven Years’ War, the British began strengthening the fort’s defenses. Siraj ud-Daulah, the Nawab of Bengal, ordered both the British and French to cease fortification work, wary of European encroachment. The French complied, but the British continued, prompting the Nawab’s ire and contributing to the subsequent conflict.

In consequence to that British indifference to his authority, Siraj ud-Daulah organised his army and laid siege to Fort William. In an effort to survive the battle, the British commander ordered the surviving soldiers of the garrison to escape, yet left behind 146 soldiers under the civilian command of John Zephaniah Holwell, a senior bureaucrat of the East India Company who had been once a military surgeon.

The desertions of Indian sepoys made the British defence of Fort William ineffective and it fell to the siege of Bengali forces on 20 June 1756. The British officers and merchants based in Calcutta were rounded up by the forces loyal to Siraj ud-Daulah and forced into a dungeon known as the "Black Hole".

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