Koine Greek (kini) (, "common Greek", or , "the common dialect") is the popular form of Greek which emerged in post-classical antiquity (c.300
BC –
AD 300), and marks the third period in the history of the
Greek language. Other names are Alexandrian, Hellenistic, Common, or New Testament Greek. Koine Greek is important not only to the history of the Greeks for being their first common dialect and main ancestor of
Demotic Greek, but it is also significant for its impact on
Western Civilization as a
lingua franca for the Mediterranean. Koine also was the original language of the
New Testament of the
Christian Bible as well as the medium for the teaching and spreading of
Christianity. Koine Greek was unofficially a first or second language in the
Roman Empire.
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