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
History of Plovdiv In that period the richer citizens constructed houses, many of which can still be seen in the Architectural reserve "Old Plovdiv". The city was the capital of Rumelia Province between 1364–1864, and of Edirne province between 1864–1878 under Ottoman Rule. Plovdiv played a role in the struggle for Church independence. Plovdiv became the center of that struggle with leaders such as Nayden Gerov, Dr Valkovich, and Joakim Gruev. In 1836 the first Bulgarian school was inaugurated and in 1850 modern secular education began with the St Cyril and Methodius school. On 11 May 1858 the city celebrated the saints' day