Coverage of the various historical cultures, rulers, and states of Europe
It was Haraldr Hárfagri of the Norse petty kingdom of Agder who fought a series of unification wars in the 860s and 870s to forge a single Norwegian kingdom by AD 872, and even then the kingdom still only comprised the southern third of modern Norway, with much of the rest forming part of a vast territory which was known to some as Kvenland.







