The Prose Edda, also known as the Younger Edda, Snorri's Edda or, historically, simply as Edda, is an Old Norse textbook written in Iceland during the early 13th century. The work is often considered to have been to some extent written, or at least compiled, by the Icelandic scholar, lawspeaker, and historian Snorri Sturluson c. 1220. It is considered the fullest and most detailed source for modern knowledge of Norse mythology, the body of myths of the North Germanic peoples, and draws from a wide variety of sources, including versions of poems that survive into today in a collection known as the Poetic Edda.
Title page of a late manuscript of the Prose Edda written by Snorri Sturluson (13th century), showing the Ancient Norse Gods Odin, Heimdallr, Sleipnir, and other figures from Norse mythology
Gylfi and High, Just-as-High, and Third. Manuscript SAM 66 (Iceland, 1765–1766), Reykjavík, Árni Magnússon Institute for Icelandic Studies.
Thjazi and Loki. Beginning of the myth of the abduction of Iðunn, attested in Skáldskaparmál. Manuscript NKS 1867 4to (Iceland, 1760), Copenhagen, Royal Library
Old Norse, Old Nordic, or Old Scandinavian is a stage of development of North Germanic dialects before their final divergence into separate Nordic languages. Old Norse was spoken by inhabitants of Scandinavia and their overseas settlements and chronologically coincides with the Viking Age, the Christianization of Scandinavia and the consolidation of Scandinavian kingdoms from about the 8th to the 15th centuries.
The Rök runestone in Östergötland, Sweden, is the longest surviving source of early Old East Norse. It is inscribed on both sides.