The material on which was drawn Thrór’s Map of the Lonely Mountain.

Parchment is formed from animal skins, usually from sheep or goats, scraped, stretched, dried and rubbed with chalk or pumice to make them suitable for writing. The process was perfected in the town of Pergamum in the 2nd century BC.

Note: This entry is a work-in-progress. Thror’s Map included moon-letters. If you know of a subtance that might be used to write letters on parchment, only visible when held up to the light, please use the Error Report facility below to leave us a note. We would be most grateful.