Peterloo Massacre a meeting in Manchester on 2 August 1819. Johnson wrote: Unknown to Johnson and Hunt, the letter was intercepted by government spies and copied before being sent to its destination. The contents were interpreted to mean that an insurrection was being planned, and the government responded by ordering the 15th Hussars to Manchester. The mass public meeting planned for 2 August was delayed until 9 August. The "Manchester Observer" reported it was called "to take into consideration the most speedy and effectual mode of obtaining Radical reform in the Common House of Parliament" and "to consider the propriety of the
Robert Poole (historian) Smithsonian Institution, National Air and Space Museum, to look at the recently-acquired papers of Arthur C. Clarke. Poole's forthcoming book "Peterloo: the English Uprising," (OUP, 2019) will provide the standard account of the1819 Peterloo massacre in Manchester, on which he has written articles in "Past and Present", "History", "Labour History Review," and edited collections. He is historical adviser to the Peterloo 2019 commemoration programme, run jointly by Manchester Histories and the People's History Museum, and to the 2017-18 community project by ReelMcr, 'Our Sam, Middleton man'.He was instrumental in bringing to the John Rylands Library a full set of the