The ethnic groups in the Middle East in the transcontinental region commonly known with its geopolitical term; the Middle East. The region has historically been a crossroad of different cultures and languages. Since the 1960s, the changes in political and economic factors (especially the enormous oil wealth in the region and conflicts) have significantly altered the ethnic composition of groups in the region. While some ethnic groups have been present in the region for millennia, others have arrived fairly recently through immigration. The largest socioethnic groups in the region are Arabs, Kurds, Persians and Turks but there are dozens of other ethnic groups which have hundreds of thousands, if not millions, of members.