Britain King Æthelstan of Wessex and Mercia annexes Northumbria, and forces Wales and Strathclyde to accept his sovereignty along with the Picts and the Scots (approximate date).
Britain King Æthelstan of Wessex and Mercia! annexes, Northumbria and, forces Wales and Strathclyde t?o accept hi!s sovereignty along with the Picts and the! Scots (approximate date).