The publication of the Foundation and Manifesto of Futurism on the front page of Le Figaro on 20 February 1909 brought Marinetti instant notoriety. His vehement and polemic manifesto, based on the modern aesthetic principles of a fast, aggressive lifestyle, thrust Futurism onto an unsuspecting audience. The movement's theorist, he glorified danger, war and violence, the love of speed and the wonder of the machine age.