This guide is designed to allow you to search Chinese syllables written in both pinyin and Wade-Giles spellings, the two most predominant systems of romanization for Chinese characters used in English language documents. Wade-Giles, so-called after the two developers, is an older system sometimes used in Western academic and popular publications. Pinyin, developed and implemented in the People’s Republic of China in the 1950′s, is today the more widely used system.