The little evidence we have suggests that woodcut prints became relatively common and cheap during the fifteenth century, and were affordable by skilled workers in towns. For example, what may be the earliest surviving Italian print, the "Madonna of the Fire", was hanging by a nail to a wall in a small school in Forlì in 1428. The school caught fire, and the crowd who gathered to watch saw the print carried up into the air by the fire, before falling down into the crowd. This was regarded as a miraculous escape and the print was carried to Forlì Cathedral, where it remains, since 1636 in a special chapel, displayed once a year. Like the majority of prints before approximately 1460, only a single impression (the term used for a copy of an old master print; "copy" is used for a print copying another print) of this print has survived.