Cynewulf is one of twelve Old English poets known by name, and one of four whose work is known to survive today. He presumably flourished in the 9th century, with possible dates extending into the late 8th and early 10th centuries. He is famous for his religious compositions, and is regarded as one of the pre-eminent figures of Anglo-Saxon Christian poetry. Posterity knows of his name by means of runic signatures that are interwoven into the four poems which comprise his scholastically recognized corpus. These poems are: "The Fates of the Apostles", "Juliana", "Elene", and "Christ II" (also referred to as "The Ascension").