Note 677 — Chapter II · THE ROMAN EMPIRE UNDER ANASTASIUS: THE INHERITANCE OF JUSTINIAN
Reading edition
About this time the Bulgarians made their first appearance on the Danube as the foes of civilization. They were lured into a treaty by Zeno; Müller, Fr. Hist. Graec., iv, p. 619 (Jn. Antioch.); cf. Zonaras, xiv, 3, etc.