The Austrian-Hungarian Empire's Dual Kingdom dissolution
Croatian and Hungarian parliaments simultaneously decide to abolish the state union of Kingdom of Hungary and Triune Kingdom of Croatia, Slavonia and Dalmatia, marking the end of the Lands of the Crown of Saint Stephen. This drastic change brings an end to the centuries-old dual monarchy, leaving room for new political arrangements to emerge. The once-unified territories now embark on separate paths, as the winds of change sweep across war-torn Europe.