Calcidius

Calcidius, a 4th-century philosopher, is known primarily for his Latin translation of the first part of Plato's *Timaeus* (up to 53c), accompanied by an extensive commentary. This work, likely completed around 321 AD, was the principal, and for a long period the only, available version of Plato's *Timaeus* in the Latin West. His commentary also offered insights into Greek astronomical knowledge. Little biographical information about Calcidius is available, leading to speculation about his origins, though his name is of Greek derivation. His translation and commentary were influential, with significant engagement from Christian scholars in the 12th century, such as those from the School of Chartres, who interpreted the dialogue through a Christian lens. Calcidius's work shows influences from Middle Platonism and potentially Neoplatonic sources like Porphyry, as well as Theon of Smyrna, Alcinous, Pseudo-Plutarch, Philo of Alexandria, Origen, and Numenius of Apamea, suggesting he drew upon a range of Platonic traditions. Notably, his writings do not display overt Christian bias or hostility.