History of Plovdiv Berlin which divided the newly liberated country into several parts. It separated the autonomous region of Eastern Rumelia from Bulgaria and Plovdiv became its capital. In three month the Ottoman Empire created an Organization Chart (Constitution) of the province and appointed a governor. At the time, it had a population of about 33,500, of which 45% were Bulgarians, 25% Greeks, 21% Turks, 6% Jews and 3% Armenians, a situation that changed rapidly in the following decades. In the spring of 1885 Zahari Stoyanov formed the Secret Bulgarian Central Revolutionary Committee in the city which actively conducted propaganda for the unification
Plovdiv is the second or the third-largest cosmopolitan city inhabited by Bulgarians, after Sofia and possibly Varna. According to the 2001 census, out of a population of 338,224 inhabitants, the Bulgarians numbered 302,858 (90%). Stolipinovo in Plovdiv is the largest Roma neighbourhood in the Balkans, having a population of around 20,000 alone; further Roma ghettos are Hadji Hassan Mahala and Sheker Mahala. Therefore, the census number is a deflation of the number of Roma people, and they are most likely the second-largest group after the Bulgarians, most of all because the Muslim Roma in Plovdiv claim to be of Turkish ethnicity