For those of us who are getting bored of images, or are finding it hard to find non-objectionable images for a particular unit, a suggestion - we could use the preorder number as a pretend year number, either in the past for the time being, or in the future.
For example, in 996, Austria was first given a documented name, in a letter from Otto III, King of Germany and Holy Roman Emperor to the Bishop of Freising (in Bavaria). Or, the oldest mosque in Beijing was built. Hmm, it probably gets better after 1066 and all that.