2003-09-23: Guilin Ouyang Started to develop HeInput component system as a hobby.
2004-05-23: HeInput keyboard application 1.0 for Windows released. HeInput uses 25 numbers to code Chinese words and phrases, can be used on alphabet main keyboard, and also on number keyboard.
2005: HeInput 3.0 released, word is defined to be a simple or complex word, each complex word is divided to at most 3 parts, take 3 main codes.
2009: HeInput 4.0 released. Character derivative concept added in, which greatly simplified extended table. 2009: Apply HeInput component system to Chinese study, started to compose a series of HeBook.
2010: HeInput for iOS released. 2011: HeInput for MacOS released. 2013: HeInput for Android released.
2014: HeInput 5.0 released, characters table was redesigned with ‘一丨十丿丶’ five columns, easy to explain.
2016: HeTraining for web apps released. 2016: HeBook1, HeBook2 web application released.
2017: HeInput 6.0 released, 25 HeCharacters table defined, 'コ匚口凵冂' each as a HeCharacter. 2017-12: Set up HeChinese Technology Academy (深圳和码科技开发院) at Shenzhen, China. Started onsite HeChinese teaching at Shenzhen.
2018: HeBook1 2nd edition printed. 2019: HeBook2 2nd edition printed. 2020: HeBook3 1st edition printed.
2020: www.HeChinese.net re-built.
2021: The Rainbow pronunciation pattern, as an important part added in. 2021: HeChinese Study Method formed, which includes: 1. HeInput component system for writing and typing; 2. The Rainbow pattern for pronunciation; 3. Short sentences reciting for memorizing sounds and meanings of words. 2021: HeChinese courses formed, including: software, textbooks, video / audio / PDF / document files, and many teaching experience.
2022: Cooperated with Shanghai University of Political Science and Law (SHUPL), Organized 16 HeChinese 2-week online bootcamps, over 3,000 foreign learners participated. 2022: Composed 6 core articles about HeChinese Study method: writing, HeInput, pronunciation, memorization, PinYin, and HeChinese. Each one has theory, technology, teaching plan, result, learners' assessments. 2023: Edited many course teaching videos and audios.
2023-3: 2-week course full study materials published in this website for free access for all. 2023-4: Pronunciation practice function add in this website, very good for Foreign learners to practice pronunciation.
1. HeInput component system; 2. The Rainbow pronunciation pattern; 3. HeChinese study method.
1. HeInput keyboard applications on multi-platforms (Windows, Android, iOS, Web); 2. HeBook applications on multi-platform (Web, Android, iOS); 3. Series of HeBook textbooks; 4. 2-week HeChinese start course; 5. Full HeChinese course for HSK0-4.