This paper analyzes the political and economic intertwining of the social currents of the elite society in civil Croatia and Slavonia on the example of the First Dalmatian-Croatian-Slavonic Economic Exhibition held in Zagreb in 1864. By applying transnational historiography in the context of the exchange of information and ideas, one gets an insight into the high influence of foreign exhibitions on the organization of the exhibition in Zagreb. The clerical staff in civilian Croatia within state and social economic institutions played a major role in this. Due to the initial title of the exhibition "Croatian State" proposed by the exhibition committee, the dispute between the mediators of Slavonic regionalism and Croatian national ideology was articulated in the periodical. The interpretation of Slavonian regionalism was carried out by means of a study on national indifference as a reaction to Croatian nationalism, during which the identity duality of the main participants in the polemic was established. The flow and participant response to the exhibition are shown. The response to the exhibition was analyzed using the exhibition catalogue, which was found to not show accurate statistical information on the number of exhibitors, which is why it was concluded that the given source needs to be revalued.