In historical times, colonists from Megara (c. 667 BC) founded Byzantium, as well as Chalcedon and, in Sicily, Hyblaean Megara, a small polis north of Syracuse. The most famous citizen of Megara in antiquity was Euclid, but the 6th century poet Theognis also came from Megara.
Today, Megara is a suburb of Athens, and is home to 10,000 people, especially the municipality. Distance is 42 km WNW of Athens, and is linked by a federal or state freeway connecting the Peloponnese, Western Greece, and Athens. It will now by linked by a high-speed rail line. The neighboring city to the east is Neos Peramos, and Kakia Skala to its west.