High Quality Content by WIKIPEDIA articles! There are a large number of romanisation systems used in the Republic of China (ROC, Taiwan). Many commonly encountered Taiwanese proper names (places and people) are written in Wade–Giles, a historic system semi-official in the ROC. After a long resistance against the use of Hanyu Pinyin, the official romanisation system used in the People`s Republic of China, the Republic of China officially adopted Hanyu Pinyin on January 1, 2009.