Early
Bronze Age pottery of the
Kostolac-Kocofeni culture has been found throughout the region. During the Roman era, the area was administratively part of the
Dacia Ripensis. During emperor Justinian's reign there were numerous fortifications in the area. Notable Roman sites include
Timacum Minus,
Trajan's Bridge,
Diana Fortress, and others. The Bulgarian ruler
Ivan Stratsimir (Vidin Principate) and Wallachian Voivode
Mircea the Elder controlled the territory of Podunavia (the Timok Valley) until the Ottoman conquest in the 14th century. The area was a battleground between Serbian rebels and the Ottoman Empire during the
First Serbian Uprising (1804–1813). A peasant uprising took place in 1883, known as the
Timok Rebellion, resulting from various economic, political, and social factors. Between 1918 and 1922, there were two districts of the
Kingdom of Serbs, Croats, and Slovenes in the area – Krajina District, with seat in
Negotin, and Timok District with seat in
Zaječar. In 1922, these two districts were merged into the newly formed Timok Oblast with seat in Zaječar. Timok Oblast existed until 1929 when it was included into the newly formed
Morava Banovina with seat in
Niš. During
World War II it was an area of operations of the
Yugoslav Partisans. At present there are two
administrative districts encompassing the area: Bor District with seat in
Bor; and Zaječar District with seat in
Zaječar. ==Demographics==