Wang Yun-wu ([wa? y?n ù]; Chinese: ???; pinyin: Wáng Yúnwu; July 9, 1888 – August 14, 1979) was born 1888 in Shanghai and was a famous Chinese scholar of history and political science, he was also a politician and invented Shih Chiao Hao Ma, a method of Chinese lexicography also sometimes referred to as the Four Corner Method.