The first known permanent settlement of the area of today's Bratislava was the
Linear Pottery Culture, around 5000 BC in the
Neolithic era. Around 200 BC, the Celtic Boii tribe established the
Bratislava oppidum on the site of today's
Bratislava Castle. The Romans established their camp
Gerulata on the right bank of the Danube in the 1st century and remained there until the 4th century. The area was part of the
Principality of Nitra and later, in the 9th century, of
Great Moravia. From the 10th century onwards, it became part of the Principality of Hungary (later the
Kingdom of Hungary) and almost the whole area was part of
Pozsony county (the exception being three villages south of Bratislava which were part of
Moson county). After the break-up of
Austria-Hungary in 1918, region was newly defined in 1923 and present Bratislava region approximately copies its 1923 borders. Bratislava Regio was abolished in 1928 and replaced by a new territorial unit called the "Slovak Land". During the
WWII Slovak Republic, Bratislava county was restored, albeit with somewhat modified borders. After the restoration of Czechoslovakia, the pre-breakup status was restored. From 1949 to 1960 a unit named Bratislava Region existed, but it was replaced in 1960 by the Western Slovak Region (except from 1 July 1969 to 28 December 1970; Bratislava was partly separate from 1968, and from 1971 it was a separate region). After abolition of the regions in 1990, the current system was introduced in 1996. Since the administrative regions became autonomous in 2002, it has been governed by the Bratislava Self-Governing Region. == Population ==