Language is a living entity that evolves over centuries, adapting to historical, social, and political changes. Ancient Greek—the language of Homer, Plato, and Aristotle—did not simply vanish overnight but gradually transformed into what we know today as Modern Greek.
So, when did Greeks stop speaking Ancient Greek? The answer isn’t straightforward, as the linguistic transition took place over many centuries.
The First Major Shift: The Hellenistic Period (4th–1st Century BC)
The first major linguistic change began in the Hellenistic period, when Koine Greek (meaning “common Greek”) replaced the various regional dialects of Ancient Greece and became the lingua franca of the Greek-speaking world.
Following Alexander the Great’s conquests, Greek spread from Egypt to India, incorporating new elements and simplifying its complex grammar. Koine Greek was far more accessible than the intricate Classical Greek spoken in Athens and laid the foundation for the language’s further evolution.
The Roman Era (1st Century BC – 4th Century AD): Further Simplification
During the Roman period, Koine Greek remained dominant in the eastern part of the Roman Empire but continued to evolve. Pronunciation changed, grammar was simplified, and Latin loanwords entered the language.
A crucial milestone was the New Testament, which was written in Koine Greek, reinforcing its status as the standard form of communication.
The Byzantine Transformation (4th–15th Century AD)
During the Byzantine period, Greek remained the empire’s official language, but spoken Greek diverged significantly from its ancient form.
Complex grammatical structures faded, and the declension system of nouns became simpler.
Pronunciation shifted, bringing it closer to Modern Greek.
While scholars continued using an archaic version of Greek, everyday speech evolved into something almost unrecognizable from Classical Greek.
By the 11th century, the language spoken by ordinary people had little in common with Ancient Greek. Medieval Greek literature, such as the epic of Digenes Akritas, was written in an early form of Modern Greek, signaling the full transition.
Although Byzantine administrative and religious texts still retained elements of Ancient Greek, spoken language had already moved in a different direction.
The Fall of Constantinople (1453) and the Birth of Modern Greek
By the time Constantinople fell in 1453, the transition to Modern Greek was complete. Ancient Greek survived only in academic and religious contexts, while the everyday language had fully evolved into its modern form.
Legacy of Ancient Greek in Today’s Language
Although Ancient Greek is no longer spoken, its influence is deeply embedded in Modern Greek. Thousands of words, grammatical structures, and expressions trace their roots back to antiquity. Additionally, Ancient Greek continues to be taught in schools, preserving the historical link between past and present.
While Greeks may not speak like Plato anymore, the essence of Ancient Greek lives on in every conversation, text, and expression used today.