Original sentence: Damyan Yovanov Gruev, often known by his short name Dame Gruev, (January 19, 1871, Smilevo -  December 10, 1906 near Petlec peak in Maleshevo) was a Bulgarian insurgent leader in Ottoman Macedonia and Thrace.He is regarded an ethnic Macedonian in the Republic of Macedonia.He was among the founders of the Bulgarian Macedonian-Adrianople  Revolutionary Committees (the future IMRO).However, during the second half of 19 century and the beginning of the 20 century the idea of a separate Macedonian ethnicity was not popular, and the most of the Slavic population in Macedonia had a Bulgarian consciousness
Edited sentence: Damyan Yovanov Gruev or Damjan Jovan Gruev, often known by his short name Dame Gruev, (January 19, 1871, Smilevo, today Macedonia -  December 10, 1906 near Petlec peak in Maleshevo, today Macedonia) was a Bulgarian and Macedonian insurgent leader in Ottoman Macedonia and Thrace.He was among the founders of the Internal Macedonian Revolutionary Organization