When and where do scholars believe that Beowulf text is written? What are some clues they have used to explain why they believe it was written during this time period?

We do not have any definite knowledge about the poet--indeed, we do not even know the date of the poem's composition. Through the study of Old English verse, most scholars believe that the poem was composed much earlier than the Cotton manuscript, between 650 and 800. Some words in Beowulf do not adhere to the scansion of Old English verse; however, using the older forms of the words, dating from the period given, causes the lines to scan correctly. Yet accurately dating the poem is a difficult enterprise since the poem has such a derivative quality. It is evident that the Beowulf poet wished to place his work within an even more ancient tradition. Beowulf directly uses many ancient stories that have been preserved in later texts, such as the legend of Sigemund and the account of the war at Finnesburh. In addition, the poem is written with the traditional epic diction, with whole phrases taken from the other bards who sang the legends incorporated.

Despite his borrowing from other sources, perhaps in large quantities, the Beowulf poet nonetheless manages to add his own specialized view of his characters' world. First and foremost, Beowulf's author is a Christian, and he makes the Christian world extremely visible. He alludes to Cain and the Flood; he shows the Christian God's influence upon the pagan world of the Danes. Yet he is obviously aware of his culture's pagan past and attempts to describe it in great detail through rituals, such as the elaborate Germanic sea-burials and the grand feasts in the mead-halls, and the ever-present belief in fate. Thus Beowulf's poet tries to recreate the past of his people for his people, almost with a nostalgic feeling for the bygone pagan days.