The last state pagan religion in Europe was Mithraism. The worship of Mithras, the Invincible Sun god was practised all over the Roman Empire, including the British Isles. The Temples in London and along Hadrian Wall can still be seen today as well some remains in Wales and York. There is no written formal documentation of the Western style of Mithraic Mysteries, the Roman ‘Cult of Mithras’. The underground Temples and their paintings, statues and few anti-pagan documents by early Christian are all that remain.
Mithra/Mitra is the prototype to Roman Mithras to whom there are several hymns in Hindu and Zoroastrian holy texts. This gives us some insight into the energy of this deity before it became fused with the great mass of Graeco-Roman magical ideas. The evolution of this deity from god of the green land, wild pastures and the solar light to one of that Invincible Sun god, who moves the cosmos by slaying constellation Taurus, has been the subject of much interest to historians and magicians.
The rest of this article by Payam Nabarz, which was published in White Dragon at Lughnasa 1999, can be read on the White Dragon website.