What is "widsith"

Widsith is an Old English poem of 143 lines. The poem survives only in the Exeter Book, a manuscript of Old English poetry compiled in the late 10th century containing approximately one sixth of all surviving Old English poetry. Widsith is located between the poems Vainglory and The Fortunes of Men. Since the donation of the Exeter Book in 1076, it has been housed in the Exeter Cathedral in southwest England. The poem is for the most part a survey of the people, kings, and heroes of Europe in the Heroic Age of Northern Europe: see Tribes of Widsith.