In the late 12th century, Icelandic authors began to fictionalize the early part of their history (c. 900–1050), and a new literary genre was born: the sagas of Icelanders. Whereas the ethos of the kings’ sagas and of the legendary sagas is aristocratic and their principal heroes warlike leaders, the sagas of Icelanders describe characters who are essentially farmers or farmers’ sons or at least people who socially were not far above the author’s public, and their conduct and motivation are measurable in terms of the author’s own ethos. These authors constantly aimed at geographic, social, and cultural verisimilitude; they made it their business to depict life in Iceland as they had experienced it or as they imagined it had actually been in the past. Though a good deal of the subject matter was evidently derived from oral tradition and thus of historical value for the period described, some of the best sagas are largely fictional; their relevance to the authors’ own times mattered perhaps no less than their incidental information about the past. An important aim of this literature was to encourage people to attain a better understanding of their social environment and a truer knowledge of themselves through studying the real and imagined fates of their forebears. A spirit of humanism, sometimes coloured by a fatalistic heroic outlook, pervades the narrative. The edificatory role, however, was never allowed to get out of hand or dominate the literary art; giving aesthetic pleasure remained the saga writer’s primary aim and duty.
Nothing is known of the authorship of the sagas of Icelanders, and it has proved impossible to assign a definite date to many of them. It seems improbable that in their present form any of them could have been written before about1200. The period circa1230–90 has been described as the golden age of saga writing because such masterpieces as Egils saga, Víga-Glúms saga, Gísla saga Súrssonar, Eyrbyggja saga, Hrafnkels saga Freysgoða, Bandamanna saga, Hænsna-Þóris saga, and Njáls saga appear to have been written during that time. Although a number of sagas date from the 14th century, only one, Grettis saga, can be ranked with the classical ones.
The sagas of Icelanders can be subdivided into several categories according to the social and ethical status of the principal heroes. In some the hero is a poet who sets out from the rural society of his native land in search of fame and adventure to become the retainer of the king of Norway or some other foreign ruler. Another feature of these stories is that the hero is also a lover. To this group belong some of the early 13th-century sagas, including Kormáks saga, Hallfreðar saga vandræðaskálds, and Bjarnar saga hítdælakappa. In Gunnlaugs saga ormstungu, which may have been written after the middle of the 13th century, the love theme is treated more romantically than in the others. Fóstbræðra saga (“The Blood-Brothers’ Saga”) describes two contrasting heroes: one a poet and lover, the other a ruthless killer. Egils saga offers a brilliant study of a complex personality—a ruthless Viking who is also a sensitive poet, a rebel against authority from early childhood who ends his life as a defenseless, blind old man. In several sagas the hero becomes an outlaw fighting a hopeless battle against the social forces that have rejected him. To this group belong Harðar saga og Hólmverja and Droplaugarsona saga. But the greatest of the outlaw sagas are Gísla saga Súrssonar, describing a man who murders his own brother-in-law and whose sister reveals his dark secret, and Grettis saga, which deals with a hero of great talents and courage who is constantly fighting against heavy odds and is treacherously slain by an unscrupulous enemy.
Most of the sagas of Icelanders, however, are concerned with people who are fully integrated members of society, either as ordinary farmers or as farmers who also act as chieftains. Hrafnkels saga describes a chieftain who murders his shepherd, is then tortured and humiliated for his crime, and finally takes cruel revenge on one of his tormentors. The hero who gives his name to Hænsna-Þoris saga is a man of humble background who makes money as a peddler and becomes a wealthy but unpopular landowner. His egotism creates trouble in the neighbourhood, and, after he has set fire to one of the farmsteads, killing the farmer and the entire household, he is prosecuted and later put to death. Ǫlkofra þáttr (the term þáttr is often used for a short story) and Bandamanna saga (“The Confederates’ Saga”) satirize chieftains who fail in their duty to guard the integrity of the law and try to turn other people’s mistakes into profit for themselves. The central plot in Laxdæla saga is a love triangle in which the jealous heroine forces her husband to kill his best friend. Eyrbyggja saga describes a complex series of feuds between several interrelated families; Hávarðar saga Ísfirðings is about an old farmer who takes revenge on his son’s killer, the local chieftain; Víga-Glúms saga tells of a ruthless chieftain who commits several killings and swears an ambiguous oath in order to cover his guilt; while Vatnsdæla saga is the story of a noble chieftain whose last act is to help his killer escape.
In the sagas of Icelanders justice, rather than courage, is often the primary virtue, as might be expected in a literature that places the success of an individual below the welfare of society at large. This theme is an underlying one in Njáls saga, the greatest of all the sagas. It is a story of great complexity and richness, with a host of brilliantly executed character portrayals and a profound understanding of human strengths and weaknesses. Its structure is highly complex, but at its core is the tragedy of an influential farmer and sage who devotes his life to a hopeless struggle against the destructive forces of society but ends it inexorably when his enemies set fire to his house, killing his wife and sons with him.