Dhaka, Dec. 13 -- Great Union Day (Romanian: Ziua Marii Uniri, also called Unification Day or National Day) is a national holiday in Romania, celebrated on 1 December, marking the unification of Transylvania, Bessarabia, and Bukovina with the Romanian Kingdom in 1918. This holiday was declared after the Romanian Revolution and commemorates the assembly of the delegates of ethnic Romanians held in Alba Iulia, which declared the Union of Transylvania with Romania.

Prior to 1948, until the abolition of the monarchy, the national holiday was on 10 May, which had a double meaning: it was the day on which King Carol I set foot on Romanian soil (in 1866), and the day on which the prince ratified the Declaration of Independence (from the Ottoman...