Historians assert that the Via Tiburtina must have come into existence as a trail during the establishment of the Latin League.[citation needed] It is difficult to determine the part of the course from Albulae Aquae to Tibur.[2] Though afterward it became an important thoroughfare, the extension of the Via Tiburtina beyond Tibur always retained its original name of Via Valeria.
^Piraino C. 2004: "The via Valeria and the centuriation", in Lapenna s. (ed.), The Aequi between Abruzzo and Lazio, Chieti, 115-118.
^One or more of the preceding sentences incorporates text from a publication now in the public domain: Ashby, Thomas (1911). "Tiburtina, Via". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 26 (11th ed.). Cambridge University Press. p. 932. Ashby cites his own contribution to Papers of the British School at Rome, iii. 84 sqq.