Buzludzha is a historical peak in the Central Stara Planina, Bulgaria and is 1441 metres high. In 1868 it was the place of the final battle between Bulgarian rebels led by Hadji Dimitar and Stefan Karadzha and the Turks. In 1891 the socialists lad by Dimitar Blagoev assembled secretly in the area to form organised socialist movement. In honour of this act was built the Buzludzha Monument, one of the symbols of the socialism in Bulgaria. Stara Planina, Rhodope, Rila and Pirin Mountains The Stara Planina (Old Mountain) or Balkan mountain range is an extension of the Carpathian mountain range, separated from it by the Danube River. ... 1868 (MDCCCLXVIII) was a leap year starting on Wednesday (see link for calendar) of the Gregorian calendar or a leap year starting on Friday of the 12-day-slower Julian calendar. ... Stefan Karadzha (Bulgarian: ) (11 May 1840 - 31 July 1868), born Stefan Todorov Dimov (Bulgarian: ), was a Bulgarian national hero, a revolutionary from the national liberation movement and a rebellion leader. ... Year 1891 (MDCCCXCI) was a common year starting on Thursday (link will display the full calendar). ... Dimitâr Blagoev was a Bulgarian political leader. ...