During the first millennium AD the most northerly part of Britain evolved into the country known today as Scotland. The transition was a long process of social and political change driven by the ambitions of powerful warlords. At first these men were tribal chiefs, Roman generals or rulers of small kingdoms. Later, after the Romans departed, the initiative was seized by dynamic warrior-kings who campaigned far beyond their own borders. Armies of Picts, Scots, Vikings, Britons and Anglo-Saxons fought each other for supremacy. In this book the remarkable story of how ancient North Britain became the medieval kingdom of Scotland is told.