Coptic becomes a full literary language

4th century CE · Classical Coptic

Complete biblical books circulate in Sahidic, the Nag Hammadi library is copied, Manichaean psalms are translated, and Bohairic versions take shape. Coptic now writes scripture, liturgy, law, letters and contracts alike.

Why it matters for the language — The classical age: every later dialect study looks back to this period.

Date: 4th century CE
Era: Classical Coptic