e/John the Deacon (Egyptian chronicler)

Information
has gloss	eng: John the Deacon was a Monophysite Egyptian chronicler whose Life of the Patriarch Michael, finished c.768–70, is the most important source for the Christian Nubia in the first half of the eighth century. The later historian Sawirus ibn al-Muqaffaʿ made heavy use of it, and although John is one of the only sources for the time and place, he is not always reliable. For instance, he records a Nubian invasion of Egypt that reached as far as Fustat in 745, after the Egyptians refused to release Michael, Patriarch of Alexandria. He is also an early source for the Arab slave trade in Africans.
lexicalization	eng: John the Deacon
instance of	(noun) a Protestant layman who assists the minister Protestant deacon, deacon