Independence Day in Romania is observed on May 10 each year, commemorating the country's official independence from the Ottoman Empire, which was recognized in 1878 following the Russo-Turkish War. Although the declaration of independence was made on May 9 by Mihail Kogălniceanu in the Romanian parliament, the formal act was signed by Prince Carol I on May 10, leading to the holiday being celebrated on this date. This day marks a significant event in Romania's history, symbolizing the establishment of the Kingdom of Romania. Despite its importance, Independence Day is a working holiday. Some Romanians also acknowledge May 9 as a day of national significance, reflecting the dual recognition of the events surrounding their independence.