The Icelandic sagas, besides being one of the most impressive literatures existing in any language, preserve detailed accounts of feud and legal action, and describe with intelligence and care the general techniques and strategies of dispute processing. They also contain, incidental to the narrative, information about values and law, marriage and death, householding arrangements and the systems of exchange, naming patterns, and so on, for those who care to coax such information from the texts.
Miller, William I. "Beating Up on Women and Old Men and Other Enormities: A Social Historical Inquiry into Literary Sources." Mercer L. Rev. 39, no. 3 (1988): 753-66.