Peterloo Massacre
Following the massacre, Wroe as editor of the "Observer" was the first journalist to describe the incident as the Peterloo massacre, taking his headline from the Battle of Waterloo that had taken place only four years before. Wroe subsequently wrote pamphlets entitled "The Peterloo Massacre: A Faithful Narrative of the Events". Priced at 2d each, they sold out each print run for 14 weeks, having a large national circulation.