That didn't happen.
adamite
They needed to be baptized.
An Acephalite ins a member of an early gnostic Christian heresy, also known as a Paulician.
Corinthians
the corinthian church
You would be referring to an Adamite. The Adamite sect became popular in Rome during the second century AD. They believed as part of their relationship with God that they should return to the "state of innocence" that Adam and Eve had before they sinned. This included "holy nudism" or abstaining from the wearing of all clothing. They lived in what are believed to be the first organized nudist colonies, most being located in North Africa and in the Middle East. But at the end of the third century, Catholicism rose up to dominance in Rome and quashed all other sects of Christianity there. The Adamite movement was revitalized in the 15th and 16th centuries throughout parts of Europe by several groups including the Neo-Adamites and the Anabaptists. This resurgence declined during the later part of the 16th century. Today, Christian Naturism is on the rise again and becoming increasingly popular worldwide.
Yes
The early Christians were Jews who believed that Jesus was the Messiah. As a result, before the Christian church developed its own traditions, the Jewish religious holidays continued to be practiced.
Serapion has written: 'Bishop Sarapion's prayer-book' -- subject(s): Christian literature, Early, Early Christian Prayers, Early Christian literature, Prayers, Early Christian
The sign of the cross as a ritual gesture is a later development in Christian tradition, not recorded as being practiced by the apostles in the New Testament. It became more prevalent in the early centuries of Christianity as a way for believers to express their faith.
Theurgy
Celtic religions were practiced until the various Celtic peoples were Christianised in the early centuries A.D.
Early hypotheses were not tested by expirementation