Heimskringla is the best known of the Old Norse kings` sagas. It was written in Old Norse in Iceland by the poet and historian Snorri Sturluson (1178/79–1241) ca. 1230. The name Heimskringla was first used in the 17th century, derived from the first two words of one of the manuscripts (kringla heimsins - the circle of the world). Heimskringla i.... Found on http://en.wikipedia.org/wiki/Heimskringla