Tables of Toledo

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Gerard of Cremona (1114–1187) edited for Latin readers the Tables of Toledo (Toledan Tables), the most accurate compilation of astronomical/astrological data (ephemeris) ever seen in Europe at the time. The Tables were partly the work of Al-Zarqali, known to the West as Arzachel, a mathematician and astronomer/astrologer who flourished in Cordoba in the eleventh century.

During the mid-thirteenth century, Giovanni Campano drew from these tables data for his Theorica Planetarum.

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