An Island Without a King
Most medieval societies were ruled by kings, counts or emperors. Iceland, for roughly three centuries, was an exception. Its people had laws, courts and leaders, but no single ruler and no royal officials. Understanding how that worked is the key to the island’s early history.
Settlement
Traditional accounts, drawn from Icelandic writings of the twelfth and later centuries, say that the settlement began in the 870s and was largely complete within about sixty years. Two texts matter most: the Book of Icelanders (Íslendingabók), a short history written by the priest Ari the Learned in the early twelfth century, and the Book of Settlements (Landnámabók), a long list of settlers and the land they claimed. Both were composed generations after the events, so their precise dates and family details should be treated with care. Archaeology supports settlement beginning in the late ninth century.
Most settlers came from Norway, often by way of the British Isles, and brought with them wives, servants, enslaved people and livestock. Many were probably from the wealthier farming class. Later stories say they left because of the growing power of King Harald Fairhair, though historians suspect that explanation is too tidy and that land, opportunity and ordinary migration also mattered. Ships suited for ocean crossing, related to but not the same as Viking longships, made the voyage possible.
Iceland offered pasture, driftwood, fish and seabirds, though its volcanic soil, cold winters and lack of large trees made farming a struggle. Settlements spread across the coastal lowlands, while the interior stayed empty.
Chieftains and the Law
Without a king, the island needed a way to settle disputes. The answer was a network of local leaders called goðar (singular goði). The word is related to the Old Norse word for god, and the role may have had religious duties in the pagan period. A goði held a goðorð, a kind of chieftaincy, which was not tied to a single territory in the way a county was. Free farmers chose which goði to follow, at least in principle, so a chieftain’s power depended on keeping his supporters satisfied. In practice, a small number of powerful families ended up controlling most of the goðorð.
The earliest local assemblies handled local disputes. Around 930, according to tradition, the chieftains created a national assembly, the Althing (Alþingi). It met each summer at Þingvellir (Thingvellir), a plain in the southwest, below a rock wall and a lava rift. A site that was central and reasonably accessible for the main population was important.
How the Althing Worked
The assembly lasted about two weeks. Its main parts were a legislative council, the Lögrétta, and courts. The council was made up of chieftains and advisers, who could make new law and interpret old law. The presiding official was the lawspeaker (lögsögumaðr), elected for a three-year term. His job was to recite one-third of the law from memory each summer from the Law Rock, so that over a full term, the whole law was spoken. Written law came later, probably in the twelfth century.
The Althing was also a gathering place for the whole society. People came to trade, find marriage partners, hear news, and take part in or watch lawsuits. Many of the sagas stage important scenes at the assembly.
Courts and Feuds
The courts handled disputes ranging from theft and injury to killings and property claims. A notable feature was that Iceland had no police or state prosecutor. If you were wronged, you or your family brought the case, with the help of a goði or a skilled legal adviser. Courts could outlaw a person, which stripped away legal protection, and could award compensation, but enforcing a judgment depended on the winner’s own supporters. Because of this, disputes often turned into long feuds, and many saga stories hinge on the gap between a court’s verdict and what actually happened afterward. These are literary accounts and exaggerate violence for effect, so historians use them carefully, a point discussed in our look at the sagas as sources. Around 1005, a higher Fifth Court was added to handle cases that lower courts could not settle, which suggests the system was being adapted when problems appeared.
The system resembled the customary law found elsewhere in medieval Europe, with its emphasis on compensation and family responsibility, but it was unusual in having a national assembly and no king to enforce it.
The Conversion
In the year 999 or 1000, according to Ari, the Althing faced a crisis when Christians and pagans each threatened to form their own law. The lawspeaker, himself a pagan, is said to have lain under a cloak for a day and then declared that the whole island should adopt Christianity, with certain private pagan practices permitted for a time. The story is partly a later reconstruction, but the central point, that the assembly decided religion as a community, fits the way the commonwealth worked. Historians generally accept that Iceland converted peacefully compared with some of its neighbors.
Christianity brought bishoprics at Skálholt and Hólar, monasteries, and a system of tithes. It also brought writing in the Latin alphabet, which paved the way for vernacular literature. The church became a major landholder, adding to the existing concentration of power.
The End of the Commonwealth
The thirteenth century, often called the Sturlung Age after a powerful family, was a period of escalating conflict between a few great chieftain families who gathered ever-larger followings and fought for control. Meanwhile, the Norwegian king, Haakon IV, was looking for ways to extend his influence overseas and made use of Icelandic leaders who sought his support. Between 1262 and 1264, the Icelandic chieftains agreed to accept the king’s overlordship, paying taxes and receiving a promise of peace and shipping from Norway. Iceland kept its own law in some form, and the Althing continued to meet, but without its former independence.
The commonwealth was never an ideal egalitarian society. It had enslaved people early on, large inequalities in land and power, and a legal system that favored those with allies. Still, as an experiment in governing without a monarch, it is one of the more distinctive political arrangements of medieval Europe.