Bede's stylistic models included some of the same authors from whom he drew the material for the earlier parts of his history. His introduction imitates the work of Orosius, and his title is an echo of Eusebius's "Historia Ecclesiastica". Bede also followed Eusebius in taking the "Acts of the Apostles" as the model for the overall work: where Eusebius used the "Acts" as the theme for his description of the development of the church, Bede made it the model for his history of the Anglo-Saxon church. Bede quoted his sources at length in his narrative, as Eusebius had done. Bede also appears to have taken quotes directly from his correspondents at times. For example, he almost always uses the terms "Australes" and "Occidentales" for the South and West Saxons respectively, but in a passage in the first book he uses "Meridiani" and "Occidui" instead, as perhaps his informant had done. At the end of the work, Bede adds a brief autobiographical note; this was an idea taken from Gregory of Tours' earlier "History of the Franks".