Landnámabók, unique Icelandic genealogical record, probably originally compiled in the early 12th century by, at least in part, Ari Thorgilsson the Learned, though it exists in several versions of a later date. It lists the names of nearly 400 prominent original settlers of Iceland who arrived between 874 and 930, their mostly Norwegian origins, their spouses, and their descendants. Their landholdings also are described with minute topographical accuracy, and altogether more than 3,000 persons and 1,400 locations are mentioned. Occasionally the lists of names are enlivened by anecdotes of marriages or feuds or by brief but vivid character sketches; the factual record is not without elements of myth and imagination. The Landnámabók served as the source for many Icelandic sagas. The latest English translation, The Book of Settlements, was published in 1972.