Editing 520 (section)

==== Byzantine Empire ====
* [[Priscian]], [[Latin grammar]]ian, writes the ''Institutiones Grammaticae'' ("Grammatical Foundations"). In [[Constantinople]], he codifies this [[manuscript]] in 18 volumes, which will be widely used through the [[Middle Ages]]. It provides the raw material for the field of [[Modistae|speculative grammar]]. 
* [[July]] &ndash; Byzantine general [[Vitalian (consul)|Vitalian]] becomes [[Roman consul|consul]], and is shortly later murdered, probably on the orders of [[Justinian I|Justinian]], the nephew and heir-apparent of Emperor [[Justin I]].<ref>{{cite journal |last=Cameron |first=Alan |title=The Death of Vitalian (520 A.D.) |journal=Zeitschrift für Papyrologie und Epigraphik |volume=48 |year=1982 |pages=93–94 |location=Bonn |publisher=Dr. Rudolf Habelt GmbH |jstor=20183637}} The month of Vitalian's death is taken from the chronicle of [[Marcellinus Comes]], ''sub anno'' 520. Alan Cameron discussed the supporting evidence, concluding that Marcellinus is correct.</ref>