The Anglo-Saxon Chronicle is a collection of annals in Old English chronicling the history of the Anglo-Saxons. The annals were initially created late in the 9th century, probably in Wessex, during the reign of Alfred the Great. Multiple manuscript copies were made and distributed to monasteries across England and were independently updated. In one case, the chronicle was still being actively updated in 1154. Nine manuscripts survive in whole or in part, though not all are of equal historical value and none of them is the original version. The oldest seems to have been started towards the end of Alfred's reign, while the most recent was written at Peterborough Abbey after a fire at that monastery in 1116. Almost all of the material in the chronicle is in the form of annals, by year; the earliest are dated at 60 BC, and historical material follows up to the year in which the chronicle was written, at which point contemporary records begin