"Medieval men were great storytellers. In the long dark of winter evenings, there was not much to do but tell stories and sing songs. At country markets, professional narrators and ballad-singers profitably drew clusters of auditors, ready to pay with their farthings. The stories were mostly old and familiar, but each teller altered and localized his material to suit his hearers and his own taste. Thus a great body of oral literature existed. Most of it has disappeared, destroyed by printing and the enormous communications industry. Some remnants of the oral tradition are included in this...