Classic Icelandic poetry is a genre of literature that dates back to the 13th century. It is characterized by its use of alliteration and kennings, which are metaphorical phrases used to describe something. The most famous example of this type of poetry is the Poetic Edda, which is a collection of anonymous poems written in Old Norse. The Edda is believed to have been compiled in the 13th century by an unknown author, and it is considered to be one of the most important works of Icelandic literature.