(1) There was a _certus ordo honorum_ in municipal life, and Juvenal must have held the quaestorship and the aedileship before the _duumviratus quinquennalis_. The lower limit of entering on a municipal career was twenty-five, according to an order of Augustus, and people did not usually begin it much later; we may therefore conclude that these municipal posts were held by Juvenal somewhere between A.D. 80 and 90. The last year is approximately fixed by the way in which Martial in two of his epigrams (vii. 24 and 91) belonging to A.D. 91 or 92 speaks of Juvenal; the words show that the latter must have been established in Rome for some time. (2) In ordinary course Juvenal would enter the army after the completion of his seventeenth year. The short time he took to arrive at the position of tribune, and the statement of _vita_ iv. 'cum ... ad dignitatem equestris ordinis pervenire sua virtute meruisset,' make it probable that he entered the army as _petitor militiae equestris_, as a preliminary step towards entering on a political career. The cohors Delmatarum I., which Juvenal commanded as tribune, was in Britain in A.D. 106, and in A.D. 124.[98] Probably it had been stationed there for a period of years, and it is likely that Juvenal filled his tribuneship there. Now, all the _vitae_ inform us that Juvenal was banished under the pretext of a military command. While the other _vitae_ give Egypt as the place of his banishment, _vita_ iv. gives Scotland; and it seems highly probable that _vita_ iv. has confused Juvenal's regular military command in Britain, and his banishment, late in life, to Egypt. The words are: '[Tyrannus] sub honoris praetextu fecit eum praefectum militis contra Scotos, qui bellum contra Romanos moverant.' This is supported by Juvenal's references to Britain. Some of these, like his references to Egypt, seem, in contradistinction to most of his references to foreign parts, to imply personal knowledge and observation. They are as follows: (1) 2, 159-161, 'Arma quidem ultra litora Iuvernae promovimus et modo captas Orcadas ac minima contentos nocte Britannos.' Here 'Iuverna' is the old name of Ireland, which is not mentioned even in Tacitus' _Agricola_[99]; for the Orcades cf. Tac. _Agr._ 10; and the excessive shortness of the summer nights mentioned in the last clause is especially true of the north of Scotland. (2) 10, 14, 'Quanto delphinis balaena Britannica maior.' This is also particularly applicable to the north of Scotland, whales being frequently seen off the Orkney and Shetland Islands. (3) 4, 141, 'Rutupinove edita fundo ostrea.' (4) 14, 196, 'Castella Brigantum.' (5) 15, 111, 'Gallia causidicos docuit facunda Britannos, de conducendo loquitur iam rhetore Thule.' Cf. Tac. _Agr._ 21. (6) 15, 124, 'Brittones.' This form is rarely found except in military inscriptions,[100] and could scarcely have been used except by one familiar with the camp in Britain.[101]