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Prehistoric settlements were excavated in the centre of the present city, near the royal palace, as well as in outer districts such as Slatina and Obelya. The well-preserved town walls (especially their substructures) from antiquity date back before the 7th century BC, when Thracians established their city next to the most important and highly respected mineral spring, still functioning today. Sofia has had several names in the different periods of its existence, and remnants from the city's past can still be seen today alongside modern landmarks. Many of the major universities, institutions, and businesses of Bulgaria are concentrated in Sofia. It is also a center of media, cultural events, modern theaters, it is a home of research institutes, sporting events, orchestras, and museums. IT industry sector is gradually growing in Sofia, together with the increasing number of events in contemporary arts, festivals, etc. |