Ari Þorgilsson
(重定向自Ari Thorgilsson the Learned)
Ari Þorgilsson (Ari Thorgilsson) (1067–1148 AD) was Iceland's most prominent medieval chronicler. He is the author of Íslendingabók, which details the histories of the various families who settled Iceland. He is typically referred to as Ari the Wise (Ari hinn fróði), and according to Snorri Sturluson was the first to write history in Old Norse.