Sidebar (could be a topic of its own):
Scribbled by a community of nuns —
Ancient Coptic graffiti adorns walls of 3,200 year-old Egyptian temple [in 500 AD]
http://www.unreportedheritagenews.com/2011/04/scribbled-by-community-of-nuns-ancient.html
Thanks! Lots there to keep me busy reading for a while.