Aelius Donatus (English: ; fl. mid-fourth century AD) was a Roman grammarian and teacher of rhetoric. He once taught Jerome, an early Christian Church father who is most known for his translation of the Bible into Latin, known as the Latin Vulgate. Newer revisions of the Vulgate are still in common use by the Catholic Church. == Works == He was the author of a number of professional works, of which several are extant: Ars maior – A commentary on Latin grammar. Ars minor – A commentary on pa…