Muscular Christianity was a philosophical movement that originated in England in the mid-19th century, characterised by a belief in patriotic duty, manliness, the moral and physical beauty of athleticism, teamwork, discipline, self-sacrifice, and "the expulsion of all that is effeminate, unEnglish and excessively intellectual".
The movement came into vogue during the Victorian era as a method of building character in students at English public schools, and is most often associated with English author Thomas Hughes and his 1857 novel Tom Brown's School Days, as well as writers Charles Kingsley and Ralph Connor. American President Theodore Roosevelt was raised in a household that practiced Muscular Christianity. Roosevelt, Kingsley, and Hughes promoted physical strength and health as well as an active pursuit of Christian ideals in personal life and politics. Muscular Christianity has continued itself through organizations that combine physical and Christian spiritual development. It is influential within both Catholicism and Protestantism.
Muscular Christianity can be traced back to Paul the Apostle, who used athletic metaphors to describe the challenges of a Christian life. However, the explicit advocacy of sport and exercise in Christianity did not appear until 1762, when Rousseau's Emile described physical education as important for the formation of moral character.
The term "Muscular Christianity" became well known in a review by the barrister T. C. Sandars of Kingsley's novel Two Years Ago in the February 21, 1857 issue of the Saturday Review. (The term had appeared slightly earlier.) Kingsley wrote a reply to this review in which he called the term "painful, if not offensive", but he later used it favourably on occasion. Hughes used it in Tom Brown at Oxford; saying that it was "a good thing to have muscled, strong and well-exercised bodies," he specified, "The least of the muscular Christians has hold of the old chivalrous and Christian belief, that a man's body is given him to be trained and brought into subjection, and then used for the protection of the weak, the advancement of all righteous causes, and the subduing of the earth which God has given to the children of men."