Plovdiv city was originally a Thracian settlement and subsequently was invaded by Persians, Greeks, Celts, Romans, Goths, Huns, Bulgars, Slavs, Rus people, Crusaders, and Turks. On 4 January 1878, Plovdiv was liberated from Ottoman rule by the Russian army. It remained within the borders of Bulgaria until July of the same year, when it became the capital of the autonomous Ottoman region of Eastern Rumelia. In 1885, Plovdiv and Eastern Rumelia joined Bulgaria. Plovdiv is situated in a fertile region of south-central Bulgaria on the two banks of the Maritsa River. The city has historically developed on seven syenite hills, some
Plovdiv English Language School, the High School of Mathematics, the Ivan Vazov Language School, the National Schools of Commerce Plovdiv, the English Academy, the Academy of Music, Dance and Fine Arts Plovdiv, and the French High School of Plovdiv. The city has six universities and a number of state and private colleges and branches of other universities. Those include Plovdiv University, with 900 lecturers and employees and 13,000 students; the Plovdiv Medical University, with 2,600 students; the Medical College; the Technical University of SofiaBranch Plovdiv; the Agricultural University Plovdiv; the University of Food Technologies; the Academy for Music, Dance and Fine