Gerald Gardner (1884 - 1964), a British civil servant, who:
has written that he joined an existing Wiccan Coven in 1939, taking the (then) usual vows of secrecy
persuaded the coven to let him write a book in 1949 about Wicca in the form of a novel, High Magic's Aid. He carefully revealed a few of the Old Religion's beliefs and the historical persecutions that they endured.
1. added many rituals, symbols, concepts and elements from ceremonial magick, Freemasonry and other sources to "flesh out" the coven's beliefs and practices, most of which had been long forgotten.
2. wrote Witchcraft Today in 1954 in which he described additional details about the faith.
3. wrote The Meaning of Witchcraft which described in detail the history of Wicca in Northern Europe.
Theories about the origins of Wicca:
There are many beliefs concerning the origins of Wicca:
According to Gardner, Wicca:
1. began in prehistory, as ritual associated with fire, the hunt, animal fertility, plant propagation, tribal fertility and the curing of disease.
2. developed into a religion which recognized a Supreme Deity, but realized that at their state of evolution, they "were incapable of understanding It" . Instead, they worshipped what might be termed "under-Gods": the Goddess of fertility and her horned consort, the God of the hunt.
3. continued their predominately Moon based worship, even as a mainly Sun-based faith of priests, the Druids, developed and evolved into the dominant religion of the Celts. By this time, Celtic society had gradually spread across Northern Europe into what is now England, France, Germany, Ireland, Netherlands, Scotland etc. They never formed a single political entity, but remained as many tribes who shared a common culture and religions.
4. survived the Roman, Saxon, and Norman invasions by going underground
5. suffered major loss in numbers during the active Christian genocides, which continued into the 18th Century
6. reached a low ebb by the middle of the 20th century. Much of the theology and ritual had been lost; Wiccan covens had become so isolated that they had lost contact with each other.
7. was revived in the UK by himself, his High Priestess Doreen Valiente, (1922 - 1999) and others, who took the surviving beliefs and practices, and fleshed them out with material from other religious, spiritual and ceremonial magick sources.
Gardner has claimed that after he wrote his books, he received many letters from members of isolated covens who had believed that their groups had been in continuous existence for generations or centuries.