[In October/November of 1517, a little more than 500 years ago, Martin Luther published and distributed his “95 Theses”, enumerating his objections to certain practices, at that time, of the Roman Catholic Church. The publication of the “95 Theses” is commonly considered to be the event that sparked the Protestant Reformation. To commemorate its 500 th  anniversary, we reprint here Philip Schaff’s introduction to the history of the Reformation, from volume six of his excellent work, History of the Christian Church.]   Introduction to the Protestant Reformation, pt. 1, by Philip Schaff   “Now the Lord is the Spirit: and where the Spirit of the Lord is, there is liberty.” (Psalm 4:8, KJV) Section 1. The Turning Point of Modern History The Reformation of the sixteenth century is, next to the introduction of Christianity, the greatest event in history. It marks the end of the Middle Ages and the beginning of modern times. Starting from religion, it gave, directly or indirectly, a mighty impulse to every forward movement, and made Protestantism the chief propelling force in the history of modern civilization. The age of the Reformation bears a strong resemblance to the first century. Both are rich beyond any other period in great and good men, important facts, and permanent results. Both contain the ripe fruits of preceding, and the fruitful germs of succeeding ages. They are turning points in the history of mankind. They are felt in their effects to this day, and will be felt to the end of time. They refashioned the world from the innermost depths of the human soul in its contact with the infinite Being. They were ushered in by a providential concurrence of events and tendencies of thought. The way for Christianity was prepared by Moses and the Prophets, the dispersion of the Jews, the conquests of Alexander the Great, the language and literature of Greece, the arms and laws of Rome, the decay of idolatry, the spread of skepticism, the aspirations after a new revelation, the hopes of a coming Messiah. The Reformation was preceded and necessitated by the corruptions of the papacy, the decline of monasticism and scholastic theology, the growth of mysticism, the revival of letters, the resurrection of the Greek and Roman classics, the invention of the printing press, the discovery of a new world, the publication of the Greek Testament, the general spirit of enquiry, the striving after national independence and personal freedom. In both centuries we hear the creative voice of the Almighty calling light out of darkness. The sixteenth century is the age of the renaissance in religion, literature, and art. The air was stirred by the spirit of progress and freedom. The snows of a long winter were fast melting before the rays of the vernal sun. The world seemed to be renewing its youth; old things were passing away, all things were becoming new. Pessimists and timid conservatives took alarm at the threatened overthrow of cherished notions and institutions, and were complaining, fault-finding and desponding. A very useless business. Intelligent observers of the signs of the times looked hopefully and cheerfully to the future. “O century!” exclaimed Ulrich von Hutten, “the studies flourish, the spirits are awake, it is a luxury to live.” And Luther wrote in 1522: “If you read all the annals of the past, you will find no century like this since the birth of Christ. Such building and planting, such good living and dressing, such enterprise in commerce, such a stir in all the arts, has not been since Christ came into the world. And how numerous are the sharp and intelligent people who leave nothing hidden and unturned: even a boy of twenty years knows more nowadays than was known formerly by twenty doctors of divinity.” The Protestant Reformation assumed the helm of the liberal tendencies and movements of the renaissance, directed them into the channel of Christian life, and saved the world from a disastrous revolution. For the Reformation was neither a revolution nor a restoration, though including elements of both. It was negative and destructive towards error, positive and constructive towards truth; it was conservative as well as progressive; it built up new institutions in the place of those which it pulled down; and for this reason and to this extent it has succeeded.  Under the motherly care of the Latin Church, Europe had been Christianized and civilized, and united into a family of nations under the spiritual government of the Pope and the secular government of the Emperor, with one creed, one ritual, one discipline, and one sacred language. The state of heathenism and barbarism at the beginning of the sixth century contrasts with the state of Christian Europe at the beginning of the sixteenth century as midnight darkness compared with the dawn of the morning. But the sun of the day had not yet arisen. All honor to the Catholic Church and her inestimable services to humanity. But Christianity is far broader and deeper than any ecclesiastical organization. It burst the shell of mediaeval forms, struck out new paths, and elevated Europe to a higher plane of intellectual, moral and spiritual culture than it had ever attained before. Section 2. Protestantism and Romanism Protestantism represents the most enlightened and active part of modern church history, but not the whole of it. Since the sixteenth century Western Christendom is divided and runs in two distinct channels. The separation may be compared to the Eastern schism of the ninth century, which is not healed to this day; both parties being as firm and unyielding as ever on the doctrinal question of the Filioque, and the more important practical question of Popery. But Protestantism differs much more widely from the Roman church than the Roman church differs from the Greek, and the Protestant schism has become the fruitful mother of minor divisions, which exist in separate ecclesiastical organizations. We must distinguish between Catholicism and Romanism. The former embraces the ancient Oriental church, the medieval church, and we may say, in a wider sense, all the modern evangelical churches. Romanism is the Latin church turned against the Reformation, consolidated by the Council of Trent and completed by the Vatican Council of 1870 with its dogma of papal absolutism and papal infallibility. Medieval Catholicism is pre-evangelical, looking to the Reformation; modern Romanism is anti-evangelical, condemning the Reformation, yet holding with unyielding tenacity the ecumenical doctrines once sanctioned, and doing this all the more by virtue of its claim to infallibility. The distinction between pre-Reformation Catholicism and post-Reformation Romanism, in their attitude towards Protestantism, has its historical antecedent and parallel in the distinction between pre-Christian Israel which prepared the way for Christianity, and post-Christian Judaism which opposed it as an apostasy. Catholicism and Protestantism represent two distinct types of Christianity which sprang from the same root, but differ in the branches. Catholicism is legal Christianity which served to the barbarian nations of the Middle Ages as a necessary school of discipline; Protestantism is evangelical Christianity which answers the age of independent manhood. Catholicism is traditional, hierarchical, ritualistic, conservative; Protestantism is biblical, democratic, spiritual, progressive. The former is ruled by the principle of authority, the latter by the principle of freedom. But the law, by awakening a sense of sin and exciting a desire for redemption, leads to the gospel; parental authority is a school of freedom; filial obedience looks to manly self-government. The characteristic features of medieval Catholicism are intensified by Romanism, yet without destroying the underlying unity. Romanism and orthodox Protestantism believe in one God, Father, Son, and Holy Spirit, and in one divine- human Lord and Saviour of the race. They accept in common the Holy Scriptures and the ecumenical faith. They agree in every article of the Apostles’ Creed. What unites them is far deeper, stronger and more important than what divides them. But Romanism holds also a large number of “traditions of the elders” which Protestantism rejects as extra-scriptural or anti-scriptural; such are the papacy, the worship of saints and relics, transubstantiation, the sacrifice of the mass, prayers and masses for the dead, works of supererogation, purgatory, indulgences, the system of monasticism with its perpetual vows and ascetic practices, besides many superstitious rites and ceremonies. Protestantism, on the other hand, revived and developed the Augustinian doctrines of sin and grace; it proclaimed the sovereignty of divine mercy in man’s salvation, the sufficiency of the Scriptures as a rule of faith, and the sufficiency of Christ’s merit as a source of justification; it asserted the right of direct access to the Word of God and the throne of grace, without human mediators it secured Christian freedom from bondage; it substituted social morality for monkish asceticism, and a simple, spiritual worship for an imposing ceremonialism that addresses the senses and imagination rather than the intellect and the heart. The difference between the Catholic and Protestant churches was typically foreshadowed by the difference between Jewish and Gentile Christianity in the apostolic age, which anticipated, as it were, the whole future course of church history. The question of circumcision or the keeping of the Mosaic law, as a condition of church membership, threatened a split at the Council of Jerusalem, but was solved by the wisdom and charity of the apostles, who agreed that Jews and Gentiles alike are “saved through the grace of the Lord Jesus” (Acts 15: 11). Yet even after the settlement of the controversy by the Jerusalem compromise Paul got into a sharp conflict with Peter at Antioch on the same question, and protested against his older colleague for denying by his timid conduct his better conviction, and disowning the Gentile brethren. It is not accidental that the Roman Church professes to be built on Peter and regards him as the first pope; while the Reformers appealed chiefly to Paul and found in his epistles to the Galatians and Romans the bulwark of their anthropology and soteriology, and their doctrine of Christian freedom. The collision between Paul and Peter was only temporary; and so the war between Protestantism and Romanism will ultimately pass away in God’s own good time. The Reformation began simultaneously in Germany and Switzerland, and swept with astonishing rapidity over France, Holland, Scandinavia, Bohemia, Hungary, England and Scotland; since the seventeenth century it has spread by emigration to North America, and by commercial and missionary enterprises to every Dutch and English colony, and every heathen land. It carried away the majority of the Teutonic and a part of the Latin nations, and for a while threatened to overthrow the papal church. But towards the close of the sixteenth century the triumphant march of the Reformation was suddenly arrested. Romanism rose like a wounded giant, and made the most vigorous efforts to reconquer the lost territory in Europe, and to extend its dominion in Asia and South America. Since that time the numerical relation of the two churches has undergone little change. But the progress of secular and ecclesiastical history has run chiefly in Protestant channels. In many respects the Roman Church of today is a great improvement upon the Medieval Church. She has been much benefited by the Protestant Reformation, and is far less corrupt and far more prosperous in Protestant than in Papal countries. She was driven to a counter- reform which abolished some of the most crying abuses and infused new life and zeal into her clergy and laity. No papal schism has disgraced her history since the sixteenth century. No pope of the character of Alexander VI or even Leo X could be elected any more. She lives chiefly of the past, but uses for her defence all the weapons of modern warfare. She has a much larger membership than either the Greek or the Protestant communion; she still holds under her sway the Latin races of both hemispheres; she satisfies the religious wants of millions of human beings in all countries and climes; she extends her educational, benevolent and missionary operations all over the globe; she advances in proportion as Protestantism degenerates and neglects its duty; and by her venerable antiquity, historical continuity, visible unity, centralized organization, imposing ritual, sacred art, and ascetic piety she attracts intelligent and cultured minds; while the common people are kept in ignorance and in superstitious awe of her mysterious authority with its claim to open the gates of heaven and hell and to shorten the purgatorial sufferings of the departed. For good and evil, she is the strongest conservative force in modern society, and there is every reason to believe that she will last to the end of time. Thus the two branches of Western Christendom seem to hold each other in check, and ought to stimulate each other to a noble rivalry in good works. The unhappy divisions of Christendom, while they are the source of many evils, have also the good effect of multiplying the agencies for the conversion of the world and facilitating the free growth of every phase of religious life. The evil lies not so much in the multiplicity of denominations, which have a mission to fulfill, as in the spirit of sectarianism and exclusivism, which denies the rights and virtues of others. The Reformation of the sixteenth century is not a finale, but a movement still in progress. We may look hopefully forward to a higher, deeper and broader Reformation, when God in His overruling wisdom and mercy, by a pentecostal effusion of His Holy Spirit upon all the churches, will reunite what the sin and folly of men have divided. There must and will be, in the fullest sense of Christ’s prophecy, “one flock, one Shepherd”  (John 10:16). [This study will continue, D.V., in the next issue.] This study is taken from:  Schaff, Philip.  History of the Christian Church, Vol. VI. New York: Charles Scribner’s Sons, 1904. A PDF file of this book can be downloaded, free of charge, at: http://www.ClassicChristianLibrary.com