The Counter-Reformation, or Catholic Reformation, was the response of the Catholic Church to the Protestant Reformation. The essence of the Counter-Reformation was a renewed conviction in traditional practices and the upholding of Catholic doctrine as the source of ecclesiastic and moral reform, and the answer to halting the spread of Protestantism. Thus it experienced the founding of new religious orders, such as the Jesuits, the establishment of seminaries for the proper training of priests, renewed worldwide missionary activity, and the development of new yet orthodox forms of spirituality, such as that of the Spanish mystics and the French school of spirituality. The entire process was spearheaded by the Council of Trent, which clarified and reasserted doctrine, issued dogmatic definitions, and produced the "Roman Catechism".
Though Ireland, Spain, France, and elsewhere featured significantly in the Counter-Reformation, its heart was Italy and the various popes of the time, who established the "Index Librorum Prohibitorum" (the list of prohibited books) and the Roman Inquisition, a system of juridical tribunals that prosecuted heresy and related offences. The Papacy of St. Pius V (1566-1572) was known not only for its focus on halting heresy and worldly abuses within the Church, but also for its focus on improving popular piety in a determined effort to stem the appeal of Protestantism. Pius began his pontificate by giving large alms to the poor, charity, and hospitals, and the pontiff was known for consoling the poor and sick, and supporting missionaries. The activities of these pontiffs coincided with a rediscovery of the ancient Christian catacombs in Rome. As Diarmaid MacCulloch stated, "Just as these ancient martyrs were revealed once more, Catholics were beginning to be martyred afresh, both in mission fields overseas and in the struggle to win back Protestant northern Europe: the catacombs proved to be an inspiration for many to action and to heroism."
The First Great Awakening was a wave of religious enthusiasm among Protestants in the American colonies "c". 1730-1740, emphasizing the traditional Reformed virtues of Godly preaching, rudimentary liturgy, and a deep sense of personal guilt and redemption by Christ Jesus. Historian Sydney E. Ahlstrom saw it as part of a "great international Protestant upheaval" that also created Pietism in Germany, the Evangelical Revival, and Methodism in England. It centered on reviving the spirituality of established congregations, and mostly affected Congregational, Presbyterian, Dutch Reformed, German Reformed, Baptist, and Methodist churches, while also spreading within the slave population. The Second Great Awakening (1800–1830s), unlike the first, focused on the unchurched and sought to instill in them a deep sense of personal salvation as experienced in revival meetings. It also sparked the beginnings of Restorationist groups such as the Mormons and the Holiness movement. The Third Great Awakening began from 1857 and was most notable for taking the movement throughout the world, especially in English speaking countries. The final group to emerge from the "great awakenings" in North America was Pentecostalism, which had its roots in the Methodist, Wesleyan, and Holiness movements, and began in 1906 on Azusa Street, in Los Angeles. Pentecostalism would later lead to the Charismatic movement.
Restorationism refers to various unaffiliated movements that considered contemporary Christianity, in all its forms, to be a deviation from the true, original Christianity, which these groups then attempted to "Reconstruct", often using the Book of Acts as a "guidebook" or sorts. Restorationism developed out of the Second Great Awakening and is historically connected to the Protestant Reformation, but differs in that Restorationists do not usually describe themselves as "reforming" a Christian church continuously existing from the time of Jesus, but as "restoring" the Church that they believe was lost at some point. The name Restoration is also used to describe the Latter-day Saints (Mormons) and the Jehovah's Witness Movement.
Fascism describes certain related political regimes in 20th century Europe, especially Nazi Germany. When the Italian government closed Catholic youth organizations, Pope Pius XI issued the encyclical "Non Abbiamo Bisogno", saying that Fascist governments had hidden "pagan intentions" and expressed the irreconcilability of the Catholic position and Fascism, which placed the nation above God and fundamental human rights and dignity. He later signed agreements with the new rulers of Italy and Germany.
Many Catholic priests and monastics were persecuted under the Nazi regime, such as the concentration camp victims Maximilian Kolbe and Edith Stein (Saint Teresa Benedicta of the Cross). Furthermore, many Catholic laypeople and clergy helped in sheltering Jews during the Holocaust, including Pope Pius XII. Various incidents, such as giving aid to downed Allied airmen, nearly caused Nazi Germany to invade the Vatican before the liberation of Rome in 1944.
The relationship between Nazism and Protestantism, especially the German Lutheran Church, is complex. Though the majority of Protestant church leaders in Germany made little comment on the Nazis' growing anti-Jewish activities, some, such as Dietrich Bonhoeffer (a Lutheran pastor) were strongly opposed to the Nazis. Bonhoeffer was later found guilty in the conspiracy to assassinate Hitler and executed.
Fundamentalist Christianity, is a movement that arose mainly within British and American Protestantism in the late 19th and early 20th centuries in reaction to modernism and certain liberal Protestant groups that denied doctrines considered fundamental to Christianity yet still called themselves "Christian". Thus, fundamentalism sought to reestablish tenants that could not be denied without relinquishing a Christian identity, the "fundamentals": the Bible as God`s word, viewed as the sole source of authority, the virgin birth of Christ, the doctrine of atonement through Jesus, the bodily resurrection of Jesus, and the imminent return of Christ.
Ecumenism broadly refers to movements between Christian groups to establish a degree of unity through dialogue. ""Ecumenism"" is derived from Greek "" (oikoumene), which means "the inhabited world", but more figuratively something like "universal oneness". The movement can be distinguished into Catholic and Protestant movements, with the latter characterized by a redefined ecclesiology of "denominationalism" (which the Catholic Church, among others, rejects).
Concerning the Greek Orthodox Church, steady movement was made to reconcile the East-West Schism. On 30 November 1894, Pope Leo XIII publishes the Apostolic Letter "Orientalium Dignitas" (On the Churches of the East) safeguarding the importance and continuance of the Eastern traditions for the whole Church. On 7 December 1965, a Joint Catholic-Orthodox Declaration of His Holiness Pope Paul VI and the Ecumenical Patriarch Athenagoras I was issued lifting the mutual excommunications of 1054.
Concerning Catholic relations with Protestant communities, certain commissions were established to foster dialogue and documents have been produced aimed at identifying points of doctrinal unity, such as the Joint Declaration on the Doctrine of Justification produced with the Lutheran World Federation in 1999.