Introduction Religion has always been one of the most important and, at the same time, the most controversial aspects of nations’ development. Historians, theologians, politicians, as well as scholars from other areas, have given prominent attention to the issue of religious effects on the formation and development of countries and relationships between them. Christianity is the religion that has been discussed in this respect more frequently than others due to its spread over many countries and regions. The social and historical influence of Christianity upon Western culture cannot be doubted since the majority of these countries’ people adhere to Christian norms and celebrate Christian traditions. However, the question of whether American is a Christian nation is not so unambiguous as it may seem at first sight. As Pannenberg (1994) notes, Christianity is only one of the many roots from which Western culture was growing. Indeed, some of the Christian traditions are embedded in the formation and functioning of the USA as a nation. However, one cannot say confidently and definitely that American is a purely Christian nation based on the major premises of this religion. The Influence of Christianity on Western Culture While Christianity is not the only crucial factor if impacting Western culture, it is undoubtedly one of the most prominent. People are aware of biblical narratives and Christian customs irrespective of whether they fully follow them or not. Christianity had a stronger effect on the formation of Western culture in the past than during the past few decades. Still, the religious roots of the present-day cultural and social life in Western civilization cannot be denied. More importantly, as Pannenberg (1994) argues, it would have been impossible for the classical antique culture to survive if it had not been embezzled by Christianity. The most prominent of the initial effects of Christianity on Western culture was the spread of philosophy and literature. Furthermore, this is an example of how Christianity did a favor to antique and medieval teachings by spreading their achievements via Christian schools and monasteries. Thus, although the knowledge and experience did not originate in the Christian tradition, they were passed to the new generations by means of this tradition’s supporters and preachers. An important point in the analysis of Christianity’s effect on Western culture should be made in its regard to politics. Secularism, or the separation between church and political institutions, is inevitable in modern society, although it was not a common practice in pre-Christian times (Pannenberg, 1994). Unlike the traditions of the ancient Roman Empire, where the emperor was both the political and religious leader, the Christian faith allowed and even encouraged a distinction between the secular and religious. The major idea behind such a principle was that the ultimate reality, which is the kingdom of God, is yet to come, so any attempts to arrange a political order at present are only temporary. Such a contrast in understanding the discrepancy between secularism and religion makes a considerable difference between Christianity and other religions. It is necessary to emphasize that this attitude does not make the situation simpler for people. On the contrary, it may be difficul