According to Landnámabók, the settlement of Iceland began in AD 874 when the chieftain Ingólfr Arnarson became the first permanent Norse settler on the island. Others had visited the island earlier and stayed over winter. During the following centuries, Norsemen settled Iceland, bringing with them thralls of Gaelic origin. From 1262 to 1918, Iceland was part of the Norwegian and later the Danish monarchies. The country became independent in 1918 and a republic was declared in 1944.