One of the earliest maps of Britain is now online….
The Gough Map is internationally famous as one of the earliest maps of Britain. Because of some overwriting, it has been dated between 1370(ish) and the 15th century. Now it is available online, and can be searched using modern place-names. At first it looks confusing, but if you remember that it is not the conventional map, indicating north, it becomes simpler. Just imagine England and Wales are lying face-down, with Scotland away to the left, and Cornwall away to the bottom-right.