The fighting, in each case, was conducted by the East India Companies of Britain and France. In 1756, the nawab of Bengal, Siraj al-Dawlah, overran the British fort at Calcutta. On a sweltering June night, someone (not the nawab; he knew nothing about it) locked up sixty-four British citizens in an airless underground prison cell. “Someone” was supposed to process them out that night and send them home, but signals got crossed and the prisoners were left in the dungeon overnight. By morning, forty-three of them were dead.