20th Century

The 20th century was marked by significant developments in Christian history, including major theological debates, the emergence of new movements such as Pentecostalism and Liberation Theology, and efforts towards Christian unity and interfaith dialogue. From the Scopes Monkey Trial to the Fall of the Berlin Wall, this period saw profound impacts on Christianity worldwide, shaping its theology, practices, and global reach.
Updated Oct 06, 2023
20th Century

These events represent some of the major developments in 20th-century Christian history, including theological debates, the growth of new Christian movements, and efforts toward Christian unity and interfaith dialogue.

20th Century Christian History

  1. 1900-1914: The Modernist-Fundamentalist Controversy

    • Theological debates between modernists (liberals) and fundamentalists (conservatives) emerged within various Christian denominations, particularly in the United States.
  2. 1904-1905: Welsh Revival

    • The Welsh Revival, led by Evan Roberts, resulted in a significant religious awakening in Wales and beyond.
  3. 1906: Azusa Street Revival

    • The Azusa Street Revival in Los Angeles is considered the birth of the Pentecostal movement, characterized by emphasizing the gifts of the Holy Spirit and speaking in tongues.
  4. 1910: Edinburgh Missionary Conference

    • The Edinburgh Missionary Conference marked a significant event in the history of Christian missions, focusing on global evangelism and cooperation among denominations.
  5. 1914-1918: World War I

    • World War I profoundly impacted Christianity, leading to questions about the compatibility of war and Christian principles.
  6. 1925: Scopes Monkey Trial

    • The Scopes Monkey Trial in the United States pitted the teaching of evolution against the teaching of creationism in public schools, highlighting tensions between science and faith.
  7. 1928: Lambeth Conference

    • The Lambeth Conference of Anglican bishops addressed issues related to Christian unity, social justice, and theological matters within the Anglican Communion.
  8. 1930: Formation of the World Council of Churches (WCC)

    • The WCC was established to promote cooperation and dialogue among Christian denominations and address social issues on a global scale.
  9. 1931: Deification of the Emperor in Japan

    • The Japanese government attempted to promote Shintoism and deify Emperor Hirohito, leading to conflicts with Christian communities in Japan.
  10. 1941-1945: World War II

    • World War II profoundly impacted Christian communities worldwide, with many churches and individuals actively resisting Nazi persecution and Japanese militarism.
  11. 1948: Founding of the World Council of Churches (WCC)

    • The WCC was officially founded in Amsterdam, solidifying its role as a major international ecumenical organization.
  12. 1962-1965: Second Vatican Council (Vatican II)

    • Vatican II marked a significant event in Catholic history, bringing about numerous reforms, including liturgical changes, greater involvement of laypeople, and improved relations with other Christian denominations.
  13. 1960s-1970s: Ecumenical and Interfaith Dialogues

    • The mid-20th century saw increased efforts at ecumenism (Christian unity) and interfaith dialogue, with various Christian denominations and faith traditions seeking common ground.
  14. 1960s-1980s: Charismatic Movement

    • The Charismatic Movement, characterized by emphasizing spiritual gifts and charismatic experiences, grew within various Christian denominations.
  15. 1960s-1980s: Liberation Theology

    • Liberation Theology emerged in Latin America, emphasizing the Church's role in addressing social injustices and advocating for the poor and marginalized.
  16. 1989: Fall of the Berlin Wall

    • The fall of the Berlin Wall marked the beginning of the end of communist regimes in Eastern Europe and opened up new opportunities for religious freedom.
  17. 1992: Joint Declaration on the Doctrine of Justification

    • The Catholic Church and the Lutheran World Federation signed the Joint Declaration on the Doctrine of Justification, a significant step toward greater ecumenical understanding.


• World Wars pit nominally Christian nations of Europe against each other.

• Emergence of charismatic Christian sects.

• Rise of the ecumenical movement.

• Revision of the Roman Catholic liturgy.

• Missions reach virtually every region of the world.

• New translation methods put the Bible into the languages of 95% of mankind, but about 1,500 small tongues, representing 5% of mankind, lack scriptures.

• More Christians are said to have been martyred in the 20th century than in all earlier centuries combined.

• Decline of church attendance becomes marked in much of the Western world.

• Explosive growth of Chinese Christianity.

• Emergence and collapse of powerful atheistic states.

• Crises in Darwinism revive Christian attacks on evolutionary theory and the development of scientific models from a Christian perspective.

• The rise of the internet and mass media led to a wide dissemination of the gospel by new means.

• An overwhelming information explosion tends to bury the truth.

Photo Credit: ©iStock/Getty Images Plus/Dmytro Yarmolin

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