Although they were not the prime targets of the policy, it was not until after World War II that large numbers of southern European and eastern European immigrants were admitted for the first time. Following this, the White Australia Policy was relaxed in stages: non-European nationals who could demonstrate European descent were admitted (e.g., descendants of European colonizers and settlers from Latin America or Africa), as were autochthonous inhabitants (such as Maronites, Assyrians and Mandeans) of various nations from the Middle East, most significantly from Lebanon and to a lesser degree Iraq, Syria and Iran. In 1973, all immigration restrictions based on race and geographic origin were officially terminated.