The Eastern Roman Empire, also called the Byzantine Empire, was a continuation of the Roman Empire in the east. It survived for nearly a thousand years, from the 4th century AD until the fall of Constantinople in 1453. While "Eastern Roman Empire" is the most common term used to describe this empire, other synonyms include Byzantine Empire, the Eastern Empire, the Roman Empire of the East, and the Eastern Roman Republic. Some historians refer to it as the Greek Roman Empire or the Greek Byzantine Empire, as Greek became the dominant language and cultural influence in the empire following the 7th century. Regardless of the name used, the Eastern Roman Empire played a crucial role in shaping Mediterranean and European history.