In the wake of the First World War, significant political transformations were occurring throughout Europe, particularly within the former Austro-Hungarian Empire. The Crown of Saint Stephen represented a dualistic state union that had existed since the Austro-Hungarian Compromise of 1867, binding Hungary and its southern provinces together. Following the collapse of the empire in 1918, both Croatian and Hungarian national sentiments surged, fueled by aspirations for independence and self-determination. On this day, representatives from both parliaments convened to discuss the future of governance in the region.

The decisions made by the Croatian Sabor (parliament) and the Hungarian Parliament marked the ceremonial end of this political union, signifying the aim of establishing distinct national governments. Croatia aimed to assert its identity, while Hungary sought to restructure in the aftermath of losing the war. As a result, the agreements made led to the individual empowerment of Croatia and Hungary, allowing them to explore potential paths for sovereignty and governance.

This dissolution also paved the way for future diplomatic negotiations and territorial disputes, as the remnants of the Austro-Hungarian Empire would lead to conflicts over borders and national governance in the years to follow. This critical period set the stage for developing national identities in Central and Southeast Europe and redefined international relations in the region.