and not much favoured among the non-religious in Britain. Yet "it was from the Ethical movement that the non-religious philosophical sense of Humanism gradually emerged in Britain, and it was from the convergence of the Ethical and Rationalist movements that this sense of Humanism eventually prevailed throughout the Freethought movement". As an organised movement in its own right, humanism emerged from vibrant non-religious movements of the 18th and 19th centuries such as the Owenites, Ethical Culture, the freethinkers, secularists, and positivists, as well as a few non-religious radical Unitarian congregations. The first Humanist Manifesto announced the humanist movement by that name to the public in 1933, following work at the University of Chicago across the 1920s. The American Humanist Association was incorporated as an Illinois non-profit organization in 1943. The International Humanist and Ethical Union was founded in 1952, when a gathering of world Humanists met under the leadership of Sir Julian Huxley. The British Humanist Association took that name in 1967, but had developed from the Union of Ethical Societies which had been founded by Stanton Coit in 1896. Manifestos and declarations Humanists have put together various Humanist Manifestos, in attempts to unify the Humanist identity. The original signers of the first Humanist Manifesto of 1933, declared themselves to be religious humanists. Because, in their view, traditional religions were failing to meet the needs of their day, the signers of 1933 declared it a necessity to establish a religion that was a dynamic force to meet the needs of the day. However, this "religion" did not profess a belief in any god. Since then two additional Manifestos were written to replace the first. In the Preface of Humanist Manifesto II, in 1973, the authors Paul Kurtz and Edwin H. Wilson assert that faith and knowledge are required for a hopeful vision for the future. Manifesto II references a section on Religion and states traditional religion renders a disservice to humanity. Manifesto II recognizes the following groups to be part of their naturalistic philosophy: "scientific", "ethical", "democratic", "religious", and "Marxist" humanism. International Humanist and Ethical Union In 2002, the IHEU General Assembly unanimously adopted the Amsterdam Declaration 2002 which represents the official defining statement of World Humanism. All member organisations of the International Humanist and Ethical Union are required by bylaw 5.1 to accept the Minimum Statement on Humanism: Humanism is a democratic and ethical life stance, which affirms that