During the
Roman era, the region belonged to the province of
Pannonia, marking its most southern zone. During the reign of emperor
Augustus, it was the epicenter of the
Pannonian Uprising. During the 5th century, the region was invaded by several migrating peoples, including
Huns and
Goths. In post-Roman era, during the 6th century, the region was contested between
Ostrogoths,
Gepids,
Langobards,
Avars, and the
Byzantine Empire. By the end the 6th and during the 7th century, the entire region was settled by
South Slavs. In 819-823, western parts of the region were center of the
Ljudevit's Rebellion against the
Frankish Empire. During the 11th and 12th century, almost all parts of Posavina were gradually conquered by the
Kingdom of Hungary. In the first half of the 18th century,
Sava-
Danube (Posavina-
Podunavlje) section of the
Habsburg Military Frontier existed in the area. Posavina segment of the Frontier comprised parts of the
Kingdom of Croatia-Slavonia – the southern parts of
Slavonia and
Syrmia, stretching from
Nova Gradiška to the confluence of the
Drina river into the Sava. Between 1929 and 1939, one of the provinces of the
Kingdom of Yugoslavia was known as the Croatian region
Sava Banovina. The capital city of the province was
Zagreb in
Croatia. In 1939, Sava Banovina was merged with
Littoral Banovina to form new
Banovina of Croatia. Today, one of the counties in
Croatia is named
Brod-Posavina County and one of the cantons in
Bosnia and Herzegovina is named
Posavina Canton. The Bosnian Posavina region was gravely hit by the
war in Bosnia and Herzegovina (1992–95) to the point that parts of it had become uninhabited , as almost all the houses were plundered, burnt or destroyed. Only a small number of people have returned to their homes. The majority of refugees live in and around the city of
Slavonski Brod,
Croatia right across the
Sava River, while a minority emigrated to the
European Union countries, the
United States, and
Australia. ==Cities and towns in Posavina==