2662521 The suffering and death due to poor ventilation, of English prisoners in the Black Hole of Calcutta, a small dungeon in the old Fort William in Calcutta, India, where troops of the Nawab of Bengal, Siraj ud-Daulah, held British prisoners of war after the capture of the fort on 20 June 1756, from \'Les Merveilles de la Science\', published c.1870 (engraving) by French School, (19th century); Private Collection.