🇩🇪 Germany · Earthwork
Danevirke
Migration → Viking Age → Medieval 500–1160 (Godfred 808 → Valdemar I brick) · Danish Iron Age → Viking Age (Danevirke Danish border wall, Godfred–Bluetooth)
Danevirke (Danewerk) — Iron Age → Viking Age linear fortification (5th–12th c, 30 km wall system between North Sea Treene marsh and Baltic Schlei fjord) 7 km west Schleswig town, Schleswig isthmus…