Oradea inside Transylvania, the fortress also served as a refuge for the local population throughout the centuries. It gained in importance when the Turks conquered Oradea in the 17th century as it was hindering the tax collection. The sultan ordered its demolition but the order was not carried out. The fortress was later destroyed by the Austrian soldiers through explosion. The tower and many walls are still standing. In the mid 20th century the tower lost its roof, probably the last wooden element of the ruins. All that remains is stone. Probably it was after the Union of Transylvania with Romania in December 1918 that the current name (Bologa) was assigned. The etymology is not clear. The Second Vienna Award in August 1940 temporarily re-situated Bologa and all of Northern Transylvania in Hungary, right at the border (some territory on the hills nearby remained in Romania). This began yet another period of tensions between ethnic Romanians and Hungarians which ended in October 1944 when the Romanian and Soviet armies defeated the Hungarian and German armies in the area, and in March 1945 with the restoration of Romania's western border. A stone quarry was opened in 1930 providing dacite stone for the Budapest-Bucharest road. The quarry was later on taken over by the Romanian railways, most of whose embankments are made of stone from the area. After 1989 the quarry was privatised and did not do very well comparing to neighbouring quarries, so it stopped being the main source of income for the villagers. The upcoming highway projects in Romania are expected to improve the quarry prospects. Forestry is also active in the area, though more active in the neighbouring valley of Drăgan. Agriculture is widely practiced but the land size and quality in the hilly-mountainous area only allows for the individual needs of the land owners Demographics According to the census from 2011 there was a total population of 4,724 people living in this commune. Of this population, 93.96% are ethnic Romanians, 5.39% ethnic Romani and 0.6% are ethnic Hungarians. Natives Gavril Dejeu References Atlasul localităților județului Cluj (Cluj County Localities Atlas), Suncart Publishing House, Cluj-Poeni, External links "Transilvania" map by Ortelius, 1570. Bologa/Sebesuar is just above and to the right from the OCCIDENS indicator at the middle left of the map. This map is a color copy of the oldest known map of Transsylvania (Honter, 1532) The fortress and