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.
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 development of scientific models from a Christian perspective.