The western part of the modern region of Transylvania is often referred as “Crişana” after three tributaries of the Criş River – Crișul Repede (fast Criș), Crișul Negru (black Criș) and Crișul Alb (white Criș). In general usage the region is defined in the north by the Someș river, in the east by the historic Principality of Transylvania, in the south by the Mureș river and in the west by the modern country of Hungary as the border was drawn in 1919. The adjacent area within Hungary is generally termed after the Tiza river.

Dance group from Bihor
History
The confusion regarding the delimitation for “Crișana” may well come from the various administrative regions created in modern Romania – Ținutul Crișurilor in 1938, that was replaced by the Region of Oradea in 1952, which was not the same as the Region of Oradea in 1956, which changed its name to Region of Crișana in 1960, and was abolished in 1968.[1]

Dance group from Pecica, Arad
The Hungarian conquest of this area by Árpád from Menumorout is recorded in the Gesta Hungarorum[2] which places the Hungarian conquest in the very late 9th century or early 10th century.
From 1711 the region came under Habsburg rule, until the Austro-Hungarian agreement of 1867 gave authority to Hungary. After the -first world war, the Treaty of Trianon in 1920 incorporated part of the region into Romania with the border approximately following the existing line of ethnic division of the population.
References
- Fazecaș, Gruia (2019). Partium ≠ Crișana ≠ North-West Romania ≠ North-West Transylvania. A geographical and archaeological perspective on the space delineation. Chiriac, A. & Goman, I. (editors), Honorem Centenar Tereza Mozes.37-52 Oradea, Editura Muzeului Țării Crișurilor.
- Rady, Martyn (2009). The Gesta Hungarorum of anonymus, the anonymous notary of King Béla a translation. The Slavonic and East European Review, 87, 681-727.