The astrological texts of the Roman Empire were written in Greek rather than in Latin; the only surviving exceptions are the poem Astronomica of Manilius (c. AD 15-20), the Matheseos libri ("Books on Astrology") of Firmicus Maternus (c. 335), and the anonymous Liber Hermetis ("Book of Hermes") from the 6th century. In the absence of astronomical tables in Latin, however, none of these was of any use, and astrology for all practical purposes disappeared with the knowledge of Greek in western Europe. It was revived only with the numerous translations of Arabic astrological and astronomical treatises made in Spain and Sicily in the 12th and 13th centuries, added by a few translations directly from the Greek. But the new astrology in the Latin-reading world remained essentially an offshoot of Islamic astrology. Its Hellenistic originals only bcame evident in the 15th and 16th centuries. During these two centuries, astrology developed in western Europe, frequently associated with Neoplatonism and Hermetism. The displacement of the Earth from the centre of the universe in the new astronomy of Copernicus (1473-1543), Galileo (1564-1642), and Johannes Kepler (1571-1630), and the rise of the new mechanistic physics of Descartes (1596-1650) and Newton (1643-1727) made astrology became increasingly recognized as scientifically untenable. Though Kepler attempted to devise a new method of computing astrological influences in the heliocentric (Sun-centred) universe, he did not succeed.