| 1989.6 | First TC Symposium 'Manuals in Japan, Now'. 600 participants. |
| 1990.7 | Second TC Symposium 'Easy-to-understand Manuals'. 800 participants. |
| 1991.8 | Third TC Symposium 'Producing Gentle & Kind Manuals' 1,200 participants. |
| 1992.1 | Establishment of JTCA |
| 1992.6 | Publication of 'Guideline for Manual Evaluation'. |
| 1992.9 | 4th TC Symposium 'In Search of Technology to Communicate'. 900 participants. |
| 1993.5 | Publications of 'Research in Human Resources Development in TC' and 'Research in Manual Production Tools'. |
| 1993.8 | 5th TC Symposium 'Communicating with More User Centered Awareness'. 800 participants. |
| 1994.5 | Publication of 'Standard TC Education Program' and 'Evaluation Criterion for Well Designed Manuals'. |
| 1994.8 | 6th TC Symposium 'TC for Better User-Interface Design'. 600 participants. |
| 1995.5 | Publication of 'Research in TC Certification Program' and 'Research in Manual Awards'. |
| 1995.8 | 7th TC Symposium 'New Wave in TC: Product Liability, Multi-Media and Internet'. 700 participants. |
| 1996.3 | Publications of 'TC Certification Exams Report' and 'Research of Manual Development under Multi-Media Environment'. |
| 1996.8 | 8th TC Symposium 'TC Technology in the Internet Age'. 850 participants. |
| 1997.3 | Seminar: 'Copyrights in the Age of Multi-Media'. |
| 1997.3 | Publications of 'Research in Practical TC Certification' and 'Guideline for Producing Electronic Manuals'. |
| 1997.8 | Opening JTCA Web site. |
| 1997.9 | TC Symposium '97 'Shapes, Colors, Sounds and Animation: TC in Electronic Space'. 1,050 participants. |
| 1998.2 | Starting TC Certifications Exam: Technical Writing Basic Level. |
| 1998.4 | Publication of 'Report on Guideline for Evaluation of Electronic Manuals'. |
| 1998.9 | TC Symposium '98 'Human-Machine Interaction'. 1,050 participants. |
| 1999.6 | Seminar: 'Practical Manual Production'. This seminar has been held every year. |
| 1999.9-12 | TC Symposium '99 'Transition from <Human vs. Digital> to <Human with Digital>'. |
| 2000.4 | Publication of 'Research in Application Areas for Technical Communication'. |
| 2000.4 | Japan Manual Awards by JTCA's single sponsorship. |
| 2000.9-12 | TC Symposium 2000 'Changing Media, Changing Definition of Easiness'. 1,100 participants in Tokyo, 310 in Osaka. |
| 2001.2 | Starting TC Certifications Exam: Technical Writing Advanced Level. |
| 2001.8-10 | TC Symposium 2001 'What's Accessibility?'. 910 participants in Tokyo, 260 in Osaka. |
| 2002.4 | Publication of 'Research in Guideline for Producing Information on the Web'. |
| 2002.9-10 | TC Symposium 2002 'Fun to Use: What Comes Next to Ease of Use'. 950 participants in Tokyo, 230 in Osaka. |
| 2003.4 | Publication of 'Second Research in Guideline for Producing Information on the Web'. |
| 2003.8-10 | TC Symposium 2003 'Nice and Cozy Man-Machine Communication'. 960 participants in Tokyo, 240 in Osaka. |
| 2004.2 | Starting TC Certifications Exam: Direction of Manual Production. |
| 2004.9 | TC Symposium 2004 'Produce to Use and Create to Produce'. 1,020 participants in Tokyo, 220 in Osaka. |
| 2004.1 | Publication of 'Guideline for Katakana Notation'. |
| 2005.3 | Publication of 'Research in Certification Program in Usability'. |
| 2005.4 | Publication of 'Standard Logo for Electronic Manual'. |
| 2005.5 | Seminar: 'Basic Manual Production'. This seminar has been held every year. |
| 2005.9-10 | TC Symposium 2005 'EXUVIATION!'. 1,110 participants in Tokyo, 270 in Osaka. |
| 2005.10 | Publication of 'Guidebook for TC Certification Exam: Technical Writing, second edition'. |
| 2006.5 | Publication of 'Research in Training for Usability Experts'. |
| 2006.5 | Presented a draft of IEC62079 Part 2 to IEC/TC3. |
| 2006.9-10 | TC Symposium 2006 'Let's Create the New Navigation!'. 1,070 participants in Tokyo, 310 in Osaka. |
| 2006.12 | Publication of 'Guidebook for TC Certification Exam: Direction of Manual Production, new edition'. |
| 2007.3 | Publication of 'Research in Training Curriculum for Technical Communicators and Usability Specialists'. |
| 2007.8-10 | TC Symposium 2007 'TORI-SETSU 2.0: Improvement of creativity and productivity'. 1,300 participants in Tokyo, 390 in Osaka. |
| 2008.3 | Publication of 'Guideline for Katakana Notation, second edition'. |
| 2008.3 | Publication of 'Research in Training Curriculum for creators of Instructional Information'. |
| 2008.8-10 | TC Symposium 2008 'Information Multiplied by Design: A New Stage for Technical Communicators'. 1,350 participants in Tokyo, 450 in Kyoto. |
| 2008.11 | At 2008 extra general meeting, resolution for the transition to a general incorporated foundation was passed. |