It survives in a single manuscript known as the Nowell Codex. Its composition by an anonymous Anglo-Saxon poet[a] is dated between the 8th and the early 11th century[page needed] In 1731, the manuscript was badly damaged by a fire that swept through a building housing a collection of Medieval manuscripts assembled by Sir Robert Bruce Cotton. The poem fell into obscurity for decades, and its existence did not become widely known again until it was printed in 1815 in an edition prepared by the Icelandic-Danish scholar Grímur Jónsson Thorkelin.
In the poem, Beowulf, a hero of the Geats in Scandinavia, comes to the help of Hroðgar, the king of the Danes, whose mead hall (in Heorot) has been under attack by a monster known as Grendel. After Beowulf slays him, Grendel's mother attacks the hall and is then also defeated. Victorious, Beowulf goes home to Geatland in Sweden and later becomes king of the Geats. After a period of fifty years has passed, Beowulf defeats a dragon, but is fatally wounded in the battle. After his death, his attendants bury him in a tumulus, a burial mound, in Geatland.
Required reading for all Nilfeheim boys and considered a Sacred Book