Coal of a permanent brazier of coal on the altar of Minerva at Aquae Sulis (modern day Bath), although in fact easily accessible surface coal from what became the Somerset coalfield was in common use in quite lowly dwellings locally. Evidence of coal's use for iron-working in the city during the Roman period has been found. In Eschweiler, Rhineland, deposits of bituminous coal were used by the Romans for the smelting of iron ore. No evidence exists of the product being of great importance in Britain before about AD 1000, the High Middle Ages. Mineral coal came to be referred to
Celtic animism foci for healing cults: Sulis was prayed to as a healer at Aquae Sulis and the goddess Arnemetia was hailed as a healer at Aquae Arnemetiae. Nemausus, for example, was not only the Gallic name for the town of Nîmes but also that of its presiding spring-god. He had a set of three female counterparts, the Nemausicae. In the same region, the town of Glanum possessed a god called Glanis: an altar from a sacred spring is inscribed 'to Glanis and the Glanicae'. Meteorological patterns and phenomena, especially wind, rain and thunder, were acknowledged as inspirited and propitiated. Inscribed dedications