Danube Province, Ottoman Empire

The Danube Province (Tuna Vilayeti) was a vilayet of the Ottoman Empire from 1864 to 1878. The vilayet was created as part of Ottoman administrative reforms of 1864 from the northern parts of Silistria Province along the Danube River and provinces of Niş and Rusçuk. It included most of what is now Bulgaria (including Southern Dobruja), except the southeastern part of it as well as the Romanian region of Northern Dobruja. The vilayet was subdivided into the sanjaks of Rusçuk, Sofya, Tırnova, Niş, Tulça, Varna, and Vidin. It was divided among Bulgaria, Serbia and Romania in 1878.