When were the Poetic Edda poems composed and written down?

The poems of the Poetic Edda were composed over a long period, spanning from approximately 800 to 1100 CE.1

While the poems themselves originated during this earlier era, they were preserved in written form in a manuscript known as the Codex Regius. This vellum manuscript dates to the second half of the 13th century, specifically around 1270. Scholars believe that this manuscript is likely a copy of material derived from earlier 13th-century sources that are no longer extant.21