Historical events in 780

4 historical records

780 · England · Offas Dyke · House · House of Mercia · Offa

Completes 150 mile dyke from the Wye to the Dee. A border with the Welsh territories, extends from the Severn to the Dee Estuary

780 · England · Northumbria · House · House of Northumbria · Elfwald

Athelbert of York retires, supporter of Elfwald who helped him gain the throne

780 · Norway · Westfold · House · House of Westfold · Halfdan II

Succeeds as King of Vestfold

780 · Roman Empire · House · House of Isaurian · Constantine VI

Succeeds as Emperor of the Eastern Roman Empire