The Conspiracy of 1741, also known as the Negro Plot of 1741 or the Slave Insurrection of 1741, was a supposed plot by slaves and poor whites in the British colony of New York in 1741 to revolt and level New York City with a series of fires. Historians disagree as to whether such a plot existed and, if there was one, its scale. During the court cases, the prosecution kept changing the grounds of accusation, ending with linking the insurrection to a Popish plot of Spanish and other Catholics.