Original sentence: Dimitar Blagoev Nikolov (); (June 14, 1856 – May 7, 1924) was a Bulgarian political leader, the founder of Bulgarian socialism and of the first social democratic party in the Balkans
Edited sentence: Dimitar Blagoev Nikolov (); (June 14, 1856 – May 7, 1924) was an ethnic Macedonian political leader in Bulgaria, the founder of Bulgarian socialism and of the first social democratic party in the Balkans