History of Transylvania union of Transylvania with Romania in Alba Iulia on 1. December 1918.; Bessarabia, having declared independence from Russia in 1917 at the Conference of the Country (Sfatul Țării), called in Romanian troops to protect the province from the Bolsheviks. The union of the Transylvania, Maramureș, Crișana and Banat regions with the Old Kingdom of Romania was ratified in 1920 by the Treaty of Trianon, which recognised the sovereignty of Romania over these regions and settled the border between the Republic of Hungary and the Kingdom of Romania. The union of Bukovina and Bessarabia with Romania was ratified in 1920 by
Transylvania Castle in Braşov County (14th century), the Hunyad Castle in Hunedoara (15th century). Notable writers such as Emil Cioran, Lucian Blaga, George Coșbuc, Octavian Goga and Liviu Rebreanu were born in Transylvania. The latter wrote the novel "Ion", which introduces the reader to a depiction of the life of the peasants and intellectuals of Transylvania at the turn of the 20th century. Transylvania has a very rich and unique religious history from the other regions of Europe. Since the Protestant Reformation, different Christian denominations coexist in this religious melting pot, including Romanian Orthodox, Romanian Greek Catholic, other Eastern Orthodox, Roman