Demographic history of Bosnia and Herzegovina of Catholic preachers. Preottoman Catholic population had a great share in the emigrations from Bosnia and Herzegovina. The emigration flows were directed towards Dalmatia, Croatia, Slavonia, Baranja and north-west Bačka. The western part of today's region of Bosnia, today known as Bosnian Krajina, was taken by the Ottomans in the 16th century, and was for some time still known as "Turkish Croatia", as its once overwhelming Catholic and Croat majority disappeared and the Ottomans entrenched the new border along the Sava and Una rivers. After more than a century of military losses, the Habsburg Empire waged some victorious wars against
Islamic Community of Bosnia and Herzegovina the faithful and attracting many who were not practicing Muslims during the socialist period, as well as Bosniaks and other Slavic Muslims living in the region of Sandžak and elsewhere. The Islamic Community of Bosnia and Herzegovina and head of the community, Grand Mufti of Bosnia and Herzegovina, are highest religious authorities for approximately 4 million Muslims in the world. The Islamic Community of Bosnia and Herzegovina has jurisdiction over the entire Bosnia and Herzegovina, as well as Croatia through muftiluk of Zagreb, headed by Aziz Hasanović, Slovenia and Bosniak religious communities and mosques around the world. However, there is