Romanian National Day, also known as Great Union Day, is celebrated on December 1st each year. This day commemorates the unification of Transylvania with the Kingdom of Romania in 1918, marking a significant moment in the country's history. It is a national holiday, and various events take place across Romania, including parades, concerts, and cultural activities. On this day, Romanians honor their national identity and heritage. The celebrations often include the raising of the Romanian flag, military displays, and speeches by government officials. It is a time for reflection on the country's past and a celebration of its unity and diversity.