Erkesiya: the Ancient Bulgar Border Rampart Containing Byzantium That Was Longer than Hadrian’s Wall
The Erkesiya was a 142-kilometer long (88 miles) border wall, or, rather, a border rampart, a fortification combining a moat, earthwork, stone and wood structures which was built by the Ancient Bulgars of the First Bulgarian Empire (632/680 – 1018)…
