The Poetic Edda is the modern name for an untitled collection of Old Norse anonymous poems, which is distinct from the Prose Edda written by Snorri Sturluson. Several versions exist, all primarily of text from the Icelandic medieval manuscript known as the Codex Regius, which contains 31 poems. The Codex Regius is arguably the most important extant source on Norse mythology and Germanic heroic legends. From the early-19th century onwards it has had a powerful influence on later Scandinavian literatures - not only through its stories, but also through the visionary force and the dramatic quality of many of the poems. It has also become an inspiring model for many later innovations in poetic meter, particularly in Nordic languages, offering many varied examples of terse, stress-based metrica