The Icelandic sagas of the Norse people are thousand-year-old chronicles of brave deeds and timeless romances, but how true to Viking life were they? Writing in Significance, Pádraig Mac Carron and Ralph Kenna use a statistical network of associations between characters to find out.
While the stories involve a cast of thousands, recurring characters have emerged as the stories passed into historical legend. A set of recurring characters living within the same fictional world is not restricted to ancient stories, such as the Norse or Greek myths, but remains a popular device in modern comic and film franchises.
By exploring the number of 'too-good-to-be-true' interactions between protagonists, the researchers built a network of recurring characters which in turn could help reveal if the stories are invented or if they are based on a real society.
"We gathered data for 18 narratives, five of which contain over 100 characters each. These are Njáls saga, Laxdćla saga, Vatnsdćla saga, Egils saga Skallagrímssonar and Gísla saga Súrssonar," said Pádraig Mac Carron. "We examined these five individually in order to compare different sagas to each other. We also studied the sagas collectively and from a network of 1549 individual characters we were able to gain insight into the structure of the overall saga society."
"We can conclude that whether the sagas are historically accurate or not, the properties of the social worlds they record are similar to those of real social networks," said Ralph Kenna. "Although one cannot conclusively determine whether the saga societies are real, on the basis of network theory we can conclude that they are remarkably realistic."
- Pádraig Mac Carron, Ralph Kenna. Viking sagas: Six degrees of Icelandic separation Social networks from the Viking era. Significance, 2013; 10 (6): 12 DOI: 10.1111/j.1740-9713.2013.00704.x
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