Lamia is the capital of Roumeli and has 46,406 inhabitants. It is built in the place of the ancient town of Lamia on the southern slopes of Othri near Spercheios River. Lamia is the trade, industrial and transit center of the prefecture of Fthiotida.
The first historic reference of Lamia is in 426 B.C. due to the destructive earthquake that caused damages in Thessalia. In the Middle Ages the town name changed to Zitouni. Lamia played an important role in the 1821 Revolution, the principal characters being Athanasios Diakos and Diovouniotis. The town was liberated in 1832, recuperated the name “Lamia” and became the most prosperous town of Roumeli. Aris Velouchiotis, the leader of the National Resistance movement during 1941-1944, was born in the region of Lamia.