Here is a manuscript page from an ancient book preserved in the Timbuktu library. It apparently shows astronomical observations.

via Wikipedia
Find a way to annotate in the margins of this ancient script, either through a tweet, or a layered image/words, or some other way. Make notes, observations, illustrations. Maybe add some information to the chart. You’re pretty creative. Go!
Tweet your response to @ds106dc and be sure to include the hashtag #tdc2015
Don't Want to Tweet Your Response? Really?