Dido, also known as Elissa, was the legendary founder and first queen of the Phoenician city-state of Carthage, in 814 BC. In most accounts, she was the queen of the Phoenician city-state of Tyre who fled tyranny to found her own city in northwest Africa. Known only through ancient Greek and Roman sources, all of which were written well after Carthage's founding, her historicity remains uncertain. The oldest references to Dido are attributed to Timaeus, who was active around 300 BC, about five centuries after the date given for the foundation of Carthage.