Pentecostalism is usually presented historically as arising from a set of overlapping revival currents in the late nineteenth and early twentieth centuries, but this short description understates complexity. Most historians trace its immediate antecedents to the Holiness movement within American Protestantism, a pietistic renewal current that emphasized conversion, personal holiness, and experiential assurance. The Holiness movement itself emerged in the mid‑ to late‑nineteenth century out of Methodism and other evangelical traditions; it produced a vocabulary of sanctification and experiential religion that Pentecostals would inherit and transform. A specific, verifiable moment often cited by both adherents and scholars is the meeting at a small Kansas prayer room in January 1901, where a student named Agnes Ozman reportedly began to speak in tongues after an extended period of prayer at the Bethel Bible School in Topeka, Kansas; that event is dated by contemporaneous sources to January 1901 and is associated with Charles F. Parham.
Charles Parham (1873–1929), a central early teacher, ran the Bethel Bible School and articulated a theological link between baptism in the Holy Spirit and glossolalia (speaking in tongues). Parham taught that tongues constituted the “initial physical evidence” of Spirit baptism — a phrase and doctrine that would be formalized in later Pentecostal organizations. Parham’s ideas circulated through Bible schools and itinerant evangelists, and they provide a clear line of transmission from nineteenth‑century holiness piety to the specifically Pentecostal emphasis on charismatic gifts.
The revival that most people associate with the public beginning of Pentecostalism is the Azusa Street Revival in Los Angeles (1906–1909). Beginning in April 1906 a small mission at 312 Azusa Street, led by William J. Seymour (1870–1922), an African American holiness preacher trained in the Parham tradition, became the focal point of an international, racially mixed, multilingual revival. Newspapers and visitors from across the United States and abroad reported ecstatic worship, speaking in tongues, prophetic utterances, and interracial fellowship within the meetings — details documented in periodicals and in the mission’s own newsletters. The Azusa meetings intensified and publicized practices that had been developing in various places and helped to knit together disparate groups into a more recognizable movement.
From these revival beginnings a number of institutions and denominations formed in the following decade. In 1914 a large council of ministers met in Hot Springs, Arkansas, and took steps toward forming what would become one of the largest Pentecostal denominations, the General Council that became known as the Assemblies of God (formally organized in 1914). Assemblies of God delegates and other early Pentecostal leaders spent the 1910s debating doctrinal points (such as the initial‑evidence doctrine) and organizing for cooperative missions. The creation of denominational structures in the 1910s and 1920s helped to stabilize an initially diffuse revival movement into institutional forms with statements of faith, ordination procedures, and mission strategies.
Two tensions are visible in these early years and help to explain later diversity. First, there is a tension between the movement’s revivalist, spontaneous ethos — the expectation that the Spirit can act unpredictably in any meeting — and the impulse to institutionalize, set boundaries, and define doctrine. The Assemblies of God’s adoption of a Statement of Fundamental Truths in 1916, which included a definition of Spirit baptism and speaking in tongues as initial evidence, is a concrete example of that institutionalizing impulse. Second, there is a persistent social tension over race and class: while Azusa Street drew an interracial crowd and often emphasized egalitarian practice, in many regions Pentecostalism later reflected broader societal segregation, leading to racially distinct Pentecostal denominations and congregations. These twin tensions — spontaneity vs. order and egalitarian rhetoric vs. social reality — help to explain Pentecostalism’s internal diversity.
International missionary activity was rapid. By the 1910s and 1920s missionaries and visiting revivalists carried Pentecostal practices to South America, Africa, and Asia. Historical records show that missionaries associated with early Pentecostal groups established churches in Brazil, the Philippines, and parts of sub‑Saharan Africa during this period, often adapting liturgy and leadership structures to local contexts. As Pentecostalism encountered existing religious traditions, it both adopted local expressive forms (music, dance, vernacular preaching) and exported new emphases (deliverance from spirit oppression, divine healing, prophecy). This inculturation process is one reason scholars observe such diverse regional forms of Pentecostalism today.
A comparative tension worth noting is the relation between Pentecostalism and older Protestant movements. On the one hand, Pentecostalism grew out of and remained connected to the broader evangelical world — keeping a high view of the Bible, emphasizing conversion, and sharing many liturgical elements. On the other hand, its experiential emphasis and claims about present‑day gifts of the Spirit set it apart from many mainline Protestantologies that were skeptical of contemporary charismatic manifestations. As a result, some early twentieth‑century Protestant denominations regarded Pentecostalism as a renewal movement, while others regarded it as heterodox.
Scholarly approaches to the movement’s origins also vary. Religious‑studies historians typically emphasize social, cultural, and institutional factors — the circulation of revivalist networks, urbanization, migration, and the role of print culture — while many Pentecostals present a theological account in which God supernaturally restored spiritual gifts described in the New Testament. Both accounts appear in the historical record: for instance, contemporaneous Pentecostal testimonies speak of supernatural experience, while denominational minutes and newspapers document meetings, donations, and organizational decisions. Responsible scholarship places these accounts side by side, attributing supernatural claims to adherents while tracing institutional developments analytically.
Finally, the origins of Pentecostalism are not limited to a single founder. Although figures such as Charles Parham and William J. Seymour loom large in many historical narratives, the movement emerged from a broader constellation of revivalists, holiness preachers, women leaders (including early leaders such as Agnes Ozman and later itinerants), and local congregations. The movement’s multiple geographic points of origin, its rapid missionary expansion, and its institutional consolidation in the 1910s and 1920s together produced a living religious tradition that was both rooted in specific events like the 1901 Topeka episode and the 1906 Azusa Street Revival and yet plural in its sources and expressions.