Five eras in the modernization of the Chinese script — from late-Qing reformers to a unified phonetic standard.

Era I · Late 19th c.
Phonetic Spelling Movement
  • 1892 — Lu Xizhang published First Steps to Clarity at a Glance, marking an important start for romanized phonetic schemes.
  • Wei Xu's Rapid Sound Transmission Characters, Qi Baoqi's Easy Character Method, and Wang Zhao's Pinyin Method followed in close succession.
  • The movement was civil and commercial in character, originating from the private sector.
Era II · 1900–1912
Simplified Character Movement
  • 1900 — Wang Zhao published Mandarin Combined Phonetic Alphabet, more developed than earlier cut-sound work, and began wide promotion.
  • Phonetic teaching and Mandarin instruction flourished, still in a non-governmental capacity.
Era III · 1913–1928
Zhuyin Alphabet Movement
  • 1913 — The Ministry of Education convened the Pronunciation Unification Conference, fixing the standard pronunciation of 6,500 characters and creating today's Zhuyin symbols.
  • 1916 — The Beiyang Government formally approved the National Alphabet; teaching and promotion began.
  • 1918 — Zhuyin was officially promulgated nationwide; the National Language Dictionary was published.
  • 1920 — The Chinese Character Commission was reorganized; schools began Zhuyin-based education.
Era IV · 1928–1949
National Language Romanization
  • 1928 — The National Academy promulgated the Official National Language Romanization, marking its formal use as an official pinyin tool.
  • 1931 — The Soviet Academy of Sciences and the Chinese Language Reform Research Society issued a written standard.
  • 1932 — The Ministry of Education announced the National Language Romanization (Pinyin Guoyu), establishing a unified system.
  • 1940 — The four-tone edition of the National Language Dictionary was published as the everyday pinyin standard.
Era V · 1949–1960 · PRC
Stage of Script Reform
  • 1956 — The first pinyin scheme of the PRC was introduced, drawing the attention and cooperation of many linguists.
  • 1958 — The Scheme for the Chinese Phonetic Alphabet (Hanyu Pinyin) was promulgated as the legal phonetic system for Chinese.
  • 1960 — The Modern Chinese Dictionary was published, codifying character usage and laying the foundation for pinyin writing.