Yes, it is. It portrays the real historical situation in Anglo - Saxon England. For example, the conflicts between different kingdoms like Wessex and the incursions of the Vikings were real historical happenings. The show tries to recreate the look and feel of that time period, from the costumes to the architecture, based on historical research.
Yes, it is. 'The Last Kingdom' is based on Bernard Cornwell's series of novels which are inspired by real historical events and figures in Anglo - Saxon England.
One of the main events was the struggle for power between the Saxons and the Danes. There were many battles over territory. For example, the Battle of Ethandun was a crucial one. Alfred the Great played a significant role in defending the Saxon kingdoms against the Danes. He also promoted learning and the unification of Saxon territories which were important aspects of the real - story context of The Last Kingdom.