Old Nubian is the name given to the written language used in medieval Nubia from the 8th to the 15th century AD. It is an ancient variety of the Nubian languages, which is still spoken in the area; in particular, it is probably ancestral to the modern-day Nobiin variety. It is preserved in at least a hundred pages of documents, mostly of a Christian religious nature, written using a modified form of the Coptic (Greek) script; the best known is The Martyrdom of Saint Menas. It is the oldest written sub-Saharan African language apart from Meroitic and Ge'ez.