Paganism has many roots the world over, including the largely prehistoric practices of the Proto-Indo-European people.
Schisms and Sects
When humankind began to write, sacred myths were recorded, with each distinct culture preserving its own set of stories about the gods and goddesses.
Missions and Expansion
Throughout ancient Europe, Paganism evolved into a variety of forms, adapting itself to local regions and venerating gods and goddesses anchored in specific places.
Exploration and Conquest
The story of Paganism in the context of empire, particularly the Roman Empire, is not so much a story of conquest as a story of ultimately being conquered.
Combining vestigial Paganism and modernist sensibilities, key figures like Gerald Gardner and Doreen Valiente revived (or, recreated) nature spirituality for their time.