Romania National Day
Tuesday, December 1, 2026
In 1859, Birth of. Romania. The Principalities of Moldavia and Wallachia were formally united under the rule of Domnitor Alexandru Ioan Cuza, marking the birth of modern Romania
History
Romania National Day on December 1 commemorates the Great Union of 1918, when the Romanian nation was finally unified under one state. On December 1, 1918, the Assembly of Alba Iulia proclaimed the union of Transylvania with Romania, fulfilling the dream of Romanian nationalists who had worked toward unity since the 1848 Revolution. The context for this was the collapse of Austria-Hungary following World War I. Previously in 1859, Moldavia and Wallachia had united under Alexandru Ioan Cuza, forming the basis of modern Romania. In 1877-78, Romania gained independence from the Ottoman Empire following the Russo-Turkish War. The acquisition of Transylvania in 1918 completed the creation of Greater Romania. December 1 is Romania's most important national holiday, celebrating the formation of the modern Romanian state and the unity of all Romanian-speaking territories.
How It's Celebrated
Celebrate by learning more about the occasion, sharing on social media with relevant hashtags, participating in community events, or taking small personal actions that align with the day's theme.