Transylvania as originally defined in Treaty of Trianon, 27 years earlier, thus confirming the return of Northern Transylvania to Romania. From 1947 to 1989, Transylvania, along with the rest of Romania, was under a communist regime. The ethnic clashes of Târgu Mureș occurred between ethnic Romanians and Hungarians in March 1990 after the fall of the communist regime and became most notable inter-ethnic incident in the post-communist era. The Transylvanian Plateau, high, is drained by the Mureș, Someș, Criș, and Olt rivers, as well as other tributaries of the Danube. This core of historical Transylvania roughly corresponds with nine counties of
Prehistory of Transylvania graves with a typical inventory: arrow heads, lances called akinakai, and animal art representations. Research shows that in about the mid-5th century BC this group disappears through assimilation into the local culture. Actually, the end of the century also delimits the First Iron Age. During the following centuries the Geto-Dacians would attain a level of development that would lead them to form a state. Prehistory of Transylvania The Prehistory of Transylvania describes what can be learned about the region known as Transylvania through archaeology, anthropology, comparative linguistics and other allied sciences. Transylvania proper is a plateau or tableland in northwest