10. Among the eight ritual institutions of Numa, Dionysius (ii. 64) after naming the Curiones and Flamines, specifies as the third the leaders of the horsemen (--oi eigemones ton Kelerion--). According to the Praenestine calendar a festival was celebrated at the Comitium on the 19th March [adstantibus pon]tificibus et trib(unis) celer(um). Valerius Antias (in Dionys. i. 13, comp. iii. 41) assigns to the earliest Roman cavalry a leader, Celer, and three centurions; whereas in the treatise De viris ill. i, Celer himself is termed -centurio-. Moreover Brutus is affirmed to have been -tribunus celerum- at the expulsion of the kings (Liv. i. 59), and according to Dionysius (iv. 71) to have even by virtue of this office made the proposal to banish the Tarquins. And, lastly, Pomponius (Dig. i. 2, 2, 15, 19) and Lydus in a similar way, partly perhaps borrowing from him (De Mag. i. 14, 37), identify the -tribunus celerum- with the Celer of Antias, the -magister equitum- of the dictator under the republic, and the -Praefectus praetorio- of the empire. Of these-the only statements which are extant regarding the -tribuni celerum- --the last mentioned not only proceeds from late and quite untrustworthy authorities, but is inconsistent with the meaning of the term, which can only signify "divisional leaders of horsemen," and above all the master of the horse of the republican period, who was nominated only on extraordinary occasions and was in later times no longer nominated at all, cannot possibly have been identical with the magistracy that was required for the annual festival of the 19th March and was consequently a standing office. Laying aside, as we necessarily must, the account of Pomponius, which has evidently arisen solely out of the anecdote of Brutus dressed up with ever-increasing ignorance as history, we reach the simple result that the -tribuni celerum- entirely correspond in number and character to the -tribuni militum-, and that they were the leaders-of-division of the horsemen, consequently quite distinct from the -magister equitum-. 11. This is indicated by the evidently very old forms -velites-and -arquites-and by the subsequent organization of the legion. 12. I. V. The King 13. I. IV. The Tibur and Its Traffic 14. -Lex- ("that which binds," related to -legare-, "to bind to something") denotes, as is well known, a contract in general, along, however, with the connotation of a contract whose terms the proposer dictates and the other party simply accepts or declines; as was usually the case, e. g. with public -licitationes-. In the -lex publica populi Romani- the proposer was the king, the acceptor the people; the limited co-operation of the latter was thus significantly indicated in the very language. CHAPTER VI The Non-Burgesses and the Reformed Constitution Amalgamation of the Palatine and Quirinal Cities