Christianity and politics in the context of "Sojourners Magazine"

Christendom or the Christian world are terms commonly used to refer to the global Christian community, Christian states, Christian-majority countries or countries in which Christianity is dominant or prevails.

Following the spread of Christianity from the Levant to Europe and North Africa during the early Roman Empire, Christendom has been divided in the pre-existing Greek East and Latin West. After the Great schism of 1054, two main branches within Christianity emerged, centred around the cities of Rome (Western Christianity, whose community was called Western or Latin Christendom) and Constantinople (Eastern Christianity, whose community was called Eastern Christendom or Byzantine commonwealth). After the fall of Constantinople in 1453, Latin Christendom rose to a central role in the Western world. Following the reformation, protestantism emerged as the third main branch of Christianity in the 16th century. The history of the Christian world spans about 2,000 years and includes a variety of socio-political developments, as well as advancements in the arts, architecture, literature, science, philosophy, politics and technology.

Christianity has been intricately intertwined with the history and formation of Western society. Throughout its long history, the Church has been a major source of social services like schooling and medical care; an inspiration for art, culture and philosophy; and an influential player in politics and religion. In various ways it has sought to affect Western attitudes towards vice and virtue in diverse fields. Festivals like Easter and Christmas are marked as public holidays; the Gregorian Calendar has been adopted internationally as the civil calendar; and the calendar itself is measured from an estimation of the date of Jesus's birth.

The cultural influence of the Church has been vast. Church scholars preserved literacy in Western Europe following the Fall of the Western Roman Empire. During the Middle Ages, the Church rose to replace the Roman Empire as the unifying force in Europe. The medieval cathedrals remain among the most iconic architectural feats produced by Western civilization. Many of Europe's universities were also founded by the church at that time. Many historians state that universities and cathedral schools were a continuation of the interest in learning promoted by monasteries. The university is generally regarded as an institution that has its origin in the Medieval Christian setting, born from Cathedral schools. Many scholars and historians attribute Christianity to having contributed to the rise of the Scientific Revolution.

A national church is a Christian church associated with a specific ethnic group or nation state. The idea was notably discussed during the 19th century, during the emergence of modern nationalism.

Samuel Taylor Coleridge, in a draft discussing the question of church and state around 1828 wrote that

The Christian left is a range of Christian political and social movements that largely embrace social justice principles and uphold a social doctrine or social gospel based on their interpretation of the teachings of Christianity. Given the inherent diversity in international political thought, the term Christian left can have different meanings and applications in different countries. While there is much overlap, the Christian left is distinct from liberal Christianity, meaning not all Christian leftists are liberal Christians and vice versa.

In the United States, the Christian left usually aligns with modern liberalism and progressivism, using the social gospel to achieve better social and economic equality. Christian anarchism, Christian communism, and Christian socialism are subsets of the socialist Christian left. Karl Marx and Friedrich Engels, authors of the Communist Manifesto, both had Christian upbringings; however, neither were devout Christians.

Muscular Christianity is a religious movement that originated in England in the mid-19th century, characterized by a belief in patriotic duty, discipline, self-sacrifice, masculinity, and the moral and physical beauty of athleticism.

The movement came into vogue during the Victorian era as a method of building character in pupils at English public schools. It 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 practised Muscular Christianity and was a prominent adherent to the movement. 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 through organizations that combine physical and Christian spiritual development. It is influential within both Catholicism and Protestantism.