Transylvania backed by the mobilization of Romanian troops, proclaimed Union with Romania on 1 December 1918. The "Proclamation of Union" of Alba Iulia was adopted by the Deputies of the Romanians from Transylvania, and supported one month later by the vote of the Deputies of the Saxons from Transylvania. The national holiday of Romania, the Great Union Day (also called "Unification Day") occurring on December 1, celebrates this event. The holiday was established after the Romanian Revolution, and marks the unification not only of Transylvania, but also of the provinces of Banat, Bessarabia and Bukovina with the Romanian Kingdom. These other
History of Transylvania (and briefly under Habsburg suzerainty) until 1602. The younger Stephen Báthory, a Hungarian Catholic who later became King Stephen Báthory of Poland, tried to maintain the religious liberty granted by the Edict of Turda but interpreted this obligation in an increasingly restricted sense. Under Sigismund Báthory, Transylvania entered the Long War, which began as a Christian alliance against the Turks and became a four-sided conflict in Transylvania involving the Transylvanians, Habsburgs, Ottomans and the Romanian voivod of Wallachia led by Michael the Brave. Michael gained control of Transylvania (supported by the Szeklers) in October 1599 after the Battle of Șelimbăr,