After William H. Durham began preaching his Finished Work doctrine in 1910, many Pentecostals rejected the Wesleyan doctrine of entire sanctification and began to teach that there were only two definite crisis experiences in the life of a Christian: conversion and Spirit baptism. These Finished Work Pentecostals (also known as "Baptistic" or "Reformed" Pentecostals because many converts were originally drawn from Baptist and Presbyterian backgrounds) teach that a person is initially sanctified at the moment of conversion. After conversion, the believer grows in grace through a lifelong process of progressive sanctification. There are 390 denominations that adhere to the finished work position. They include the Assemblies of God, the Foursquare Gospel Church, and the Open Bible Churches.