What is the name of the common dialect of Greek that influenced its speakers?

The common dialect of Greek that significantly influenced its speakers is known as Koine. This form of Greek emerged after the conquests of Alexander the Great, which spread Greek culture and language across a vast area, including parts of Europe, Asia, and Africa. Koine became the lingua franca of the Hellenistic world, allowing people from diverse backgrounds to communicate effectively. Its simplified grammar and vocabulary made it accessible to a broader population, facilitating trade, culture, and the spread of ideas.

While other dialects like Attic, Ionian, and Doric represent distinct regional variations of ancient Greek used in specific areas or periods, they did not achieve the widespread utility that Koine did. This makes Koine particularly significant in the context of classical literature and historical documentation, as many works from this era were composed in this dialect, including the New Testament of the Christian Bible.