Yane Sandanski
Sandanski was born in the village of Vlahi near Kresna in Ottoman Empire on May 18, 1872. His father Ivan participated as a standard-bearer in the Kresna-Razlog Uprising. After the crush of the uprising, in 1879 his family moved to Dupnitsa, Bulgaria, where Sandanski received his elementary education. From 1892 to 1894 he was a soldier in the Bulgarian army. Sandanski was an active supporter of the Radoslavov's wing of the Liberal Party and shortly after it came to power in February 1899, he was appointed head of the Dupnitsa Prison. Because of that, his name ""Sandanski"" distorted from ""Zindanski"" that comes from Turkish ""Zindancı"" (lit. "Dungeon Keeper" or "Jailer").
Yane Sandanski was involved in the Revolutionary Movement in Macedonia and Thrace and became one of its leaders. He joined initially the Supreme Macedonian-Adrianople Committee (SMAC) in 1895 during an incursion into the Muslim-inhabited regions of the central Rhodopes ìn Thrace. In the next five years, Sandanski was a SMAC activist in the Pirin region, but in 1900 returned to become a director of the local prison in Dupnitsa. In 1901, Sandanski switched to the Internal Macedono-Adrianopolitan Revolutionary Organization (IMARO). He built up the organization’s network of committees in the districts of Serres and Gorna Dzhumaja in the Pirin region, and that is why the people gave him the nickname "PirinTsar" (Pirinski Tsar). He was also one from the organizers of the Miss Stone Affair - America's first modern hostage crisis. On September 3, 1901, a Protestant missionary named Ellen Stone set out on horseback across the mountainous hinterlands of Macedonia and was ambushed by a band of armed revolutionaries. Sandanski was also active in the anti-Ottoman Ilinden-Preobrazhenie Uprising. The Militias active in the region of Serres, led by Yane Sandanski and an insurgent detachment of the "Macedonian Supreme Committee", held down a large Turkish force. These actions began on the day of the Feast of the Cross and did not involve the local population as much as in other regions, but were well to the east of Monastir and to the west of Thrace.
Yane Sandanski
After the Young Turk Revolution in 1908 and during the Second Constitutional Era Sandanski (in association with Hristo Chernopeev, Chudomir Kantardziev, Aleksandar Buynov and others) contacted the Young Turks and started legal operation. After the disintegration of IMARO, they tried to set up the Macedonian-Adrianople Revolutionary Organization (MORO). Later, the congress for MORO's official inauguration failed and Sandanski and Chernopeev started to work towards a creation of one of the left political parties in the Ottoman Empire – People's Federative Party (Bulgarian Section), whose headquarters was in Solun. This federalist project was supposed to include different ethnic sections in itself, but this idea failed and the only section that was created was the faction of Sandanski, called "Bulgarian section". In this way its activists only "revived" their Bulgarian national identification, as Sandanski's faction advocated the particular interests of the "Bulgarian nationality" in the Empire. In 1909 the group around Sandanski and Chernopeev participated in the rally of the Young Turks to Istanbul that led to the deposition of sultan Abdul Hamid II from the throne. Sandanski dreamed about the creation of a Balkan Federative Republic according to the plans of the Balkan Socialist Federation and Macedonia as a part of that Federation. He demanded that the IMARO should embrace all nationalities in the region, not only Bulgarians.