Romanians, the first Christians in East Europe
Therefore, in the 6-7th centuries, when the formation process of the Romanian people was done, this nation emerged in history as a Christian one. This is why, unlike the neighbouring nations, which have established dates of Christianization (the Bulgarians - 865, the Serbs - 874, the Poles-966, the eastern Slavs - 988, the Hungarians - the year 1000), the Romanians do not have a fixed date of Christianization, as they were the first Christian nation in the region.
Beginning with the 10th century, the Byzantine, Slav and Hungarian sources, and later on the western sources mention the existence of statehood entities of the Romanian population - kniezates and voivodates - first in Transylvania and Dobrudja, then in the 12-13th centuries, also in the lands east and south of the Carpathians. A specific trait of the Romanian’s history from the Middle Ages until the modern times is that they lived in three Principalities that were neighbours, but autonomous - Wallachia, Moldavia and Transylvania.
Alone or in alliance with the neighbouring Christian countries, more often in alliance with the neighbouring voivodes of the other two Romanian principalities, the voivodes of Wallachia Mircea the Old (1386-1418) and Vlad the Impaler (Dracula of the Mediaeval legends, 1456-1462), with Stephen the Great and Holy (1457-1504), the voivode of Moldavia and Iancu of Hunedoara, the voivode of Transylvania (1441-1456) fought heavy defence battles against the Ottoman Turks, delaying their expansion to Central Europe.