Pragmaticus. Lilburne, John Wildman and Richard Baxter later thought that Oliver Cromwell and Henry Ireton had applied the term to Lilburne's group during the Putney Debates of late 1647. Lilburne considered the term pejorative and called his supporters "Levellers so-called" and preferred "Agitators". The term suggested that the "Levellers" aimed to bring all down to the lowest common level. The leaders vehemently denied the charge of "levelling", but adopted the name because it was how they were known to the majority of people. After their arrest and imprisonment in 1649, four of the "Leveller" leaders – Walwyn, Overton, Lilburne and Thomas Prince – signed a manifesto in which they called themselves Levellers. The first ideological identification was due to Thomas Edwards, who, in his work Gangraena (1646), summed up Levellers' views and attacked their radical political egalitarianism that showed no respect for the constitution. The prime targets in part III of his work were the men who were to be recognized as the leaders of the Leveller party. The Oxford English Dictionary dates the first written use of the term for a political movement to 1644, in Marchamont Needham's pamphlet The Case for the Commonwealth of England Stated which however dates from 1650. The OED notes the term was also used in a letter of 1 November 1647. The 19th-century historian S. R. Gardiner suggested that it existed as a nickname before this date. Blair Worden, the most recent historian to publish on the subject, concluded that the 1 November letter was the first recorded use of the term. The letter referred to extremists among the Army agitators: "They have given themselves a new name, viz. Levellers, for they intend to sett all things straight, and rayse a parity and community in the kingdom". Worden shows that the term first appeared in print in a book by Charles I called His Majesties Most Gracious Declaration. This tract was a printing of a letter that had been read in the House of Lords on 11 November 1647. Although George Thomason did not date this tract, the last date internal to the document was Saturday 13 November 1647, suggesting a publication date of 15 November 1647. Political ambitions The Levellers' agenda developed in tandem with growing dissent within the New Model Army in the wake of the First Civil War. Early drafts of the Agreement of the People emanated from army circles