Roughly 84 per cent of Taiwan's population are descendants of Han Chinese immigrants from Qing China between 1683 and 1895. Another significant fraction descends from Han Chinese who immigrated from mainland China in the late 1940s and early 1950s. The shared cultural origin combined with several hundred years of geographical separation, some hundred years of political separation and foreign influences, as well as hostility between the rival ROC and PRC have resulted in national identity being a contentious issue with political overtones.