The most notable Serbian linguist of the 19th century, Vuk Karadžić, was a follower of the view that all south Slavs that speak the Shtokavian dialect (of Serbo-Croatian) were Serbs, speaking the Serbian language. As this definition implied that large areas of continental Croatia, Dalmatia, and Bosnia and Herzegovina, including areas inhabited by Roman Catholics – Vuk Karadžić is considered by some to be the progenitor of the Greater Serbia program. More precisely, Karadžić was the shaper of modern secular Serbian national consciousness, with the goal of incorporating all indigenous Shtokavian speakers (Eastern Orthodox, Catholic, Muslim) into one, modern Serbian nation. German historian Michael Weithmann