Sofia has a history that goes back thousands of years. Through the centuries, many peoples have inhabited it and added to its rich and diverse history. Numerous Neolithic villages have been discovered in the area, while a chalocolithic settlement has been recently discovered in the very center of modern Sofia. The Thracian Serdi tribe settled here in the 7th century BC and gave the first recorded name of Sofia - Serdica. The Byzantines called it Triaditsa and the Slavs - Sredets. The modern city of Sofia was named in the 14th century after the basilica St. Sofia. In Greek, word sofia means wisdom. In the 3rd century AD, the Romans built strong walls around Serdica, their capital of Inner Dacia and an important stopping point on the Roman road from Naisus (present Nish, Yugoslavia) to Constantinople.
Today many streets, buildings, parks, and even whole neighborhoods preserve the architectural style from the turn of the century. Between 1879 and 1939, the population of Sofia grew from 20 000 to 300 000, while today 1 250 000 people live in Sofia. Since ancient times the city was famous for the abudance of cold and thermal mineral water springs in and around it. The water is still available today and is praised for its numerous qualities. Springs may be found in the city center, as well as in the neighbourhoods: Kniazevo, Gorna Bania, Bankia, Ovcha Kupel and Ivaniane.