Age of settlement
The first people thought to have inhabited Iceland were Irish monks or hermits who came in the eighth century, but left with the arrival of Norsemen, who systematically settled Iceland in the period AD 870-930. However, there is still no tangible evidence beyond the written word to support the theory of monk inhabitation yet, as well, any writings supporting the theory are conflicted. The first known permanent Norse settler was Ingólfur Arnarson, who built his homestead in Reykjavík in 874. Ingólfur was followed by many other emigrant settlers, largely Norsemen and their Irish slaves. By 930, most arable land had been claimed and the Althing, a legislative and judiciary parliament, was founded as the political hub of the Icelandic Free State. Christianity was peacefully adopted in 1000. The Free State lasted until 1262, at which point the political system devised by the original settlers proved unable to cope with the increasing power of Icelandic chieftains.