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 the city in development of modern trade, banking and industry. In 1939 there were 16,000 craftsmen and 17,000 workers in manufacturing factories, mainly for food and tobacco processing. During the Second World War the tobacco industry expanded as well as the export of fruit and vegetables. In 1943 1,500 Jews were saved from deportation in concentration camps by the archbishop of Plovdiv Cyril who later became Bulgarian Patriarch. During the period of communist governance that followed the end of World War II many large factories were built in and nearby Plovdiv, for example a plant for non-ferrous metals, textile works,