Etymology of Wicca learned the term during his initiation into the New Forest coven in 1939. By the late 1950s, Gardner's rival Charles Cardell, founder of his own tradition, had begun referring to the religion's followers as "Wiccens", and possibly used "Wicca" in reference to the religion itself. The inclusive use of the term "Wicca"—referring to the entirety of Pagan Witchcraft religion—has been traced to Britain in the early 1960s, when it was used by various groups and publicised through use in adverts, magazines, and other literary sources. It was later adopted by figures like Alex Sanders and Gavin and Yvonne Frost, who
Wicca oral teachings passed along to their initiates. There are many variations on the core structure, and the religion grows and evolves over time. It is divided into a number of diverse lineages, sects and denominations, referred to as "traditions", each with its own organisational structure and level of centralisation. Due to its decentralized nature, there is some disagreement over what actually constitutes Wicca. Some traditions, collectively referred to as British Traditional Wicca, strictly follow the initiatory lineage of Gardner and consider the term "Wicca" to apply only to similar traditions, but not to newer, eclectic traditions. Wicca is typically duotheistic,