Northern Transylvania gouge a claw-shaped corridor through northwestern Romania, including a large Romanian-populated area, in order to incorporate this Hungarian-majority area within Hungary. Population of Northern Transylvania, as per 1930 Romanian census: Before the arbitration, in 1940, according to the Romanian estimates, in Northern Transylvania there were 1,304,903 Romanians (50,2%) and 978,074 (37,1%) Hungarians. One year later, after the arbitration, according to the Hungarian census, the population of Northern Transylvania has dissimilar ratios, it counted 53.5% Hungarians and 39.1% Romanians. Hungary held Northern Transylvania from 1940 to 1944. In 1940 ethnic disturbances between Hungarians and Romanians continued after some incidents following the
Celts in Transylvania found in Mediaș, Moreşti, (Mureş County) and Ciumeşti. Expansion of Celtic groups in the area may be related to their invasion of the Balkans around 335 BC, when a massive colonization of the Tisa plain and the Transylvanian Plateau occurred following the death of Lysimachus. However, the eastward movement of the Celts into Transylvania used a different route from the one taken by the hordes that attacked the Balkans. Celts did not occupy all intra-Carpathian areas of Transylvania, stopping short of the Maramureş Depression for instance, where excavations have uncovered Dacian fortifications from the 4th and 3rd centuries BC. As