When did Norse mythology originate?

Norse mythology originated in the early medieval period, primarily during the Viking Age, which spanned from the late 8th century to the early 11th century. Its roots can be traced back to earlier Germanic pagan beliefs and oral traditions. Written records of Norse mythology began to emerge in the 13th century with works like the Poetic Edda and the Prose Edda, although the myths themselves had been passed down through generations long before that.