, also known as Byzantine Greek
, is the stage of the Greek language
between the end of Classical antiquity
in the 5th-6th centuries and the end of the Middle Ages
, conventionally dated to the Ottoman conquest of Constantinople
in 1453. From the 7th century onwards, Greek was the only language of administration and government in the Byzantine Empire
. This stage of language is thus described as Byzantine Greek. The study of the Medieval Greek language and literature is a branch of Byzantine Studies, or Byzantinology
, the study of the history and culture of the Byzantine Empire.