[edit] Middle Ages

Several medieval scholars were credited as magicians in popular legend, notably Gerbert d'Aurillac and Albertus Magnus: both men were active in scientific research of their day as well as in ecclesiastical matters, which was enough to attach to them a nimbus of the occult.

Magic practice was actively discouraged by the church, but remained widespread in folk religion throughout the medieval period. Magical thinking became syncretized with Christian dogma, expressing itself in practices like the judicial duel and relic veneration. The relics had become amulets, and various churches strove to purchase scarce or valuable examples, hoping to become places of pilgrimage. As in any other economic endeavour, demand gave rise to supply.^{[2][ clarify ]} Tales of the miracle-working relics of the saints were compiled later into quite popular collections like the Golden Legend of Jacobus de Voragine or the Dialogus miraculorum of Caesar of Heisterbach.

From the 13th century, the Jewish Kabbalah exerts influence on Christian occultism, giving rise to the first grimoires and the scholarly occultism that would develop into Renaissance magic. The demonology and angelology contained in the earliest grimoires assume a life surrounded by Christian implements and sacred rituals. The underlying theology in these works of Christian demonology encourages the magician to fortify himself with fasting, prayers, and sacraments, so that by using the holy names of God in the sacred languages, he could use divine power to coerce demons into appearing and serving his usually lustful or avaricious magical goals.^[3]

13th century astrologers include Johannes de Sacrobosco and Guido Bonatti.

[edit] Renaissance

Further information: Renaissance magic

Renaissancehumanism saw resurgence in hermeticism and Neo-Platonic varieties of ceremonial magic. The Renaissance and the Industrial Revolution, on the other hand, saw the rise of scientism, in such forms as the substitution of chemistry for alchemy, the dethronement of the Ptolemaic theory of the universe assumed by astrology, the development of the germ theory of disease, that restricted the scope of applied magic and threatened the belief systems it relied on.^[2]

The seven artes magicae or artes prohibitae, arts prohibited by canon law, as expounded by Johannes Hartlieb in 1456, their sevenfold partition reflecting that of the artes liberales and artes mechanicae, were:

1. nigromancy ("black magic", "demonology", linked by popular etymology with necromancy)
2. geomancy
3. hydromancy
4. aeromancy
5. pyromancy
6. chiromancy
7. scapulimancy

Both bourgeoisie and nobility in the 15th and 16th century showed great fascination with these arts, which exerted an exotic charm by their ascription to Arabic, Jewish, Gypsy and Egyptian sources. There was great uncertainty in distinguishing practices of vain superstition, blasphemous occultism, and perfectly sound scholarly knowledge or pious ritual. The intellectual and spiritual tensions erupted in the Early Modern