Evia, the second largest island of Greece and the third in the eastern Mediterranean, is located close to the Prefecture of Attica. However, it has a somewhat mainland character, since two bridges – the modern, suspended one and the older, sliding one – link it to mainland Greece, called “Sterea Ellada”.
Evia has wonderful beaches, a pleasant climate, renowned monuments, many thermal sources and tasty food and is, therefore, a popular and nearby destination for the inhabitants of Athens. The island extends over a surface of 3,580 km2, its coastline is 48 km long and it has 220,000 inhabitants.
Various findings in several parts of the area (Istiaia, Kirinthos, Psachna, Amarynthos, Artaki, Karistos etc) evidence that Evia was inhabited from the Paleolithic Era. Important archeological finding have been excavated fro the period of copper. Ruins dating back to the Early Helladic period have been found in Lefkanti, Vasiliko and in Manika, Chalkida, while in Oreoi and Aliveri ruins of the Middle Helladic period have been found. Finally, tombs and ruins of post Hellenic and Mycenaean era have been excavated in many areas of Chalkida.
Taken from: https://www.visitgreece.gr/islands/evia/