The global rise of Pentecostalism in the 20th Century is, arguably, one of the most significant developments in the history of the church. In this groundbreaking study, Donald Dayton examines the Theological Roots of Pentecostalism as it grew out of Methodism, and early colonial, and post-colonial American revivals and grass-roots ministry. Primarily, Dayton asserts these "theological roots" are grown from a Methodist theological seed, and the movement was therefore not simply an organic and spontaneous movement. This book is a crucial link in understanding how what has become the world's fastest growing Christian movement began, and from where the derived their impetus. This book is an excellent resource for Historical Theologians, and Church Historians alike, and anyone interested in Pentecostalism, its doctrines, its practice, and its world-wide expansion.