Old Nubian is the modern designation for a literary language attested in texts from the Nubian kingdoms of Nobadia and Makuria in the Middle Nile Valley between the late eighth and fifteenth centuries ce. It belongs to the Nilo-Saharan linguistic phylum and is written in an alphabetic script based on Coptic, with the addition of several characters from the Meroitic alphasyllabary. Old Nubian was written in a multiliterate context, alongside Greek, Coptic, and Arabic, and its materials encompass documents and inscriptions of both a religious and secular nature.