This is my experimental attempt at mapping the origins of letters using colour and size to represent the date of writing. Older letters are represented with large circles using colours at the red end of the spectrum. The more recent the letter the smaller the circle with a colours moving to the blue end of the spectrum. Overlapping circles allow a user to see the different periods in which letters from particular location were written. (The size of the circles do not represent the number of letters written.) Click on a circle to see the location.