The 'Clarke Plato', one of the oldest and most important witnesses
for the text of this author, was written by John the Calligrapher
in A.D. 895 for Arethas the deacon, originally a native of Patras,
who later became archbishop of Caesarea in Cappadocia. Most of the
marginal notes in the so-called half-uncial script were added by
Arethas himself.
