Acts 27:1 - Dummelow's Commentary on the Bible

Julius] a person otherwise unknown. The narrative reveals him as courteous and humane, open to religious impressions, and able to appreciate, a great character. Augustus' band] rather, 'the Augustan cohort.' This cohort has been generally regarded as one of the five cohorts which, Josephus tells us, were stationed at Cæsarea. Prof. Mommsen, however, thinks that it belonged to a body of troops called frumentarii (lit. 'victuallers'), whose headquarters were at Rome on the Coelian hill. They not only superintended the provisioning of the imperial armies, but were continually going to and fro on the Emperor's business.