What event began the Charismatic Renewalist Movement?

First, the classical Pentecostals were being forced into change, end of isolationism, stress on education, the rise of the Full Gospel Business Men’s Fellowship International, and the labor of du Plessis. Second, mainline denominationalism faced declining numbers, reduced budgets, dwindling zeal, the fruit of liberal theology, the ecumenical movement. They were anxious for renewal. Third, postwar Americans longed for meaning in an experiential existential context.