The Great National Assembly of Alba Iulia (Romanian: Marea Adunare Națională de la Alba Iulia) was an assembly held on 1 December 1918 in the city of Alba Iulia in which a total of 1,228 delegates from several areas inhabited by ethnic Romanians declared the union of Transylvania with Romania.
Regular ethnic Romanian civilians were also called to participate, and these came from all regions inhabited by Romanians; in total, the assembly was attended by some 100,000 people.
[1] Although the assembly was announced for 1 December, debates on Transylvania's accession into Romania between prominent representatives of the Romanian National Central Council started already on 30 November.
At the debate, chaired by Ștefan Cicio Pop, the present social democrats, including Ioan Flueraș, argued in favour of autonomy for Transylvania within Greater Romania, while the majority of nationalists and representatives of expatriates argued against autonomy and in favour of unconditional annexation.
[1] The day after the Great National Assembly and the Declaration of Alba Iulia, the Ruling Council of Transylvania, Banat and the Romanian Lands in Hungary [ro] was created for the administration of the lands that had been declared as having united with Romania.