"Junius was the pseudonym of a writer who contributed a series of letters to the Public Advertiser, from 21 January 1769 to 21 January 1772. The signature had been already used, apparently by him, in a letter of 21 November 1768. These and numerous other personal letters were not included in his Letters of Junius collection, published in 1772....Sir Philip Francis (22 October 1740 ? 23 December 1818) was an Irish-born British politician and pamphleteer, the supposed author of the Letters of Junius, and the chief antagonist of Warren Hastings. His accusations against the latter led to the Impeachment of Warren Hastings by Parliament."--Wikipedia.