Black Hole of Calcutta
- a dungeon 6 metres (20 feet) square in Fort William, Calcutta, where perhaps as many as 146 English prisoners were confined overnight following the capture of Calcutta by the nawab of Bengal in 1756. Only twenty-three of them were still alive the next morning.加尔各答黑牢（加尔各答威廉堡内一个6平方米［20平方英尺］地牢, 1756年加尔各答被孟加拉藩王征服后, 多达146名英国俘虏被囚禁于此, 一夜后仅23人存活）。