The provided text outlines the historical background of Independent Czechoslovak State Day, commemorating the formation of a unified nation after World War I. Prior to the collapse of the Austro-Hungarian Empire, Bohemia, Moravia, and Slovakiaexperienced distinct political climates and economic structures under separate foreign administrations. Despite these differences between the industrialized Czech territories and agricultural Slovakia, regional nationalist campaigns successfully seized the historic opportunity to merge. Official autonomy was publicly declared in Prague’s Wenceslas Square on October 28, 1918, establishing the First Republic. Finally, leadership of this newly forged country was entrusted to Tomáš Garrigue Masaryk, who had previously spearheaded the external nationalist movement against imperial rule.