Marble already provides several maps of the moon. Among them a map from Hevelius based on his old drawing of the moon.

This task is about creating a similar historical map. Search for an old map of the Moon (preferably 19th century or before). Since there have been no spacecrafts up to this point the maps of the moon will only cover one hemisphere (possibly a bit more due to libration which we need to ignore/average out).

We've created a step-by-step-tutorial that you can follow to create earth based historic maps:

Historical Maps Tutorial

The reprojection tool used in this tutorial needs to be slightly modified in order to reproject the drawing to an equirectangular map.

The map should have a legend (like the one of Hevelius) which provides some links and explanations to the content of the map.

Expected results: A new historical map of the moon ready for upload to the GHNS server.
Prerequisites: Knowledge of editing xml files, basic C/math skills