Krste Petkov Misirkov (Bulgarian: Кръстьо Петков Мисирков; Macedonian: Крсте Петков Мисирков) (18 November 1874, Postol, Ottoman Empire – 26 July 1926, Sofia, Kingdom of Bulgaria) was a philologist, slavist, historian, ethnographer and publicist. He published a book and a scientific magazine in which he affirmed the existence of a Macedonian national identity separate from other Balkan nations, and attempted to codify a standard Macedonian language based on the Central Macedonian dialects. A survey conducted in the Republic of Macedonia found Misirkov to be "the most significant Macedonian of the 20th century". For his efforts to codify a standard Macedonian language, he is often considered "the founder of the modern Macedonian literary language".His first works from the early 20th. century were focused on the Balkan politics and the "Macedonian Question", including the codification of a standard Macedonian language and the assertion of a Macedonian nation as distinct from the other South Slavs. However in 1907 he began writing predominantly pro-Bulgarian articles, but Misirkov reverted to Macedonian nationalism once again in 1919. During the 1920s his views change again, and until his death in 1926, he encouraged the Macedonian Slavs to adopt a Bulgarian national identity. Because Misirkov expressed conflicting views about the national identity of the Macedonians Slavs at different points in his life, his national affiliation and legacy remains a matter of dispute between Bulgaria and the Republic of Macedonia.In fact Misirkov is an typical example of such theories, insisting on the possibility of miltiple and shifting personal identities.