Medieval scribe’s slip-up triggered centuries of confusion over a long-lost saga. Researchers finally decoded the error CTV NewsA 900-Year-Old Typo May Unravel a Chaucer Mystery The New York TimesThe Song of Wade University of CambridgeScholars Crack 130-Year-Old Mystery Behind a Lost Medieval Epic Artnet NewsMedieval preacher invoked chivalric hero as a meme in sermon Ars Technica