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Serbian was reformed by Serbian philologist Vuk Stefanović Karadžić. Karadžić sought to simplify and modernize the Serbian language, advocating the use of the vernacular and phonetic spelling. His reforms, which were based on the spoken language of the common people, aimed to make Serbian more accessible and democratic. Karadžić's work had a profound impact on Serbian literature and culture, and his legacy continues to shape the language today.