Frank R Donovan

At the height of their power in the ninth and tenth centuries, the Vikings seemed invincible- conquering well-armed warriors whose ships were the ultimate in seafaring technology. From island bases near the deltas of major rivers, they used the waterways to scour the countryside, looting and burning towns, plundering merchant shipments, and stripping churches and monasteries of their gold, silver, and jeweled treasures. The Norsemen eventually penetrated...