African Americans used Pentecostalism and other religious practises to encrypt messages about freedom.
More about Pentecostalism
The DuPree African-American Pentecostal and Holiness Collection is the outcome of Sherry Sherrod DuPree's study, which she started in 1981.
African-American Pentecostalism has its beginnings in the late early twentieth Holiness movement. That initiative got its start as a reformation movement inside Methodism, aiming to sanitise the religion and pursue a more intimate connection with God.
It preached that salvation required a second experience, called as sanctification or spiritual perfection, after conversion and water baptism.
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