The timeline below, is by no means an exhaustive list, but a general overview, and due to its nature, is continuously under development. If you are aware of information that may have been omitted, or is of historical significance to the IKGA, please email sensei Eugene for inclusions.
| 1909 - January 21 |
The founder, Gōgen Yamaguchi was born in Kagoshima Pref. |
| 1929 |
Gōgen Yamaguchi entered Ritsumeikan University, majoring law studies.
He organized Karate studies club. |
| 1942 - September 28 |
The present president Goshi Yamaguchi was born in Shinkyo, Manchuria. |
| 1949 |
Gōgen Yamaguchi opened Dōjō in Nihonzutsumi, Asakusa, Taito ward. |
| 1950 |
By Gōgen Yamaguchi's proposal, All Japan Karate-dō Gōjū-kai was united.
Asakusa Senzoku Dōjō was opened. |
| 1961 |
Gosen Yamaguchi went to the states to enter a university.
He opened a Dōjō in San Francisco In 1964 Gosei, the first child and in 1965 Goshi, the third child went to the states. |
| 1965 |
International Karate-dō Gōjū-kai Association was formed and united. |
| 1973 |
The Suginami Goju-kan head Dōjō was opened. |
| 1978 |
The Chōjun Miyagi Sensei's 20th memorial, visiting his grave in Okinawa. |
| 1983 |
The Goju-ryu founder, Chōjun Miyagi Sensei's 30th Kensho Memorial International Friendly Match was held. |
| 1989 - May,20 |
Gōgen Yamaguchi passed away of acute cardiac arrest. |
| 1989 - September 26 |
All Japan Karate-dō Gōjū-kai Association funeral was held at Meiji Kaikan, in Minato ward. |
| 1990 |
Gōshi Yamaguchi became the president of All Japan Karate-dō Gōjū-kai Association and of International Karate-dō Gōjū-kai Association. |
| November 21-23 |
From November 21st through 23rd, Chōjun Miyagi Sensei & Gōgen Yamaguchi Kensho The 1st Karate-dō Gōjū-kai world Tournament was held at Chiba Port Arena. |
| 24-25,Nov,1995 |
The 1st Karate-dō Gōjū-kai Asian Pacific Tournament was held in Kuala Lumpur, Malaysia. |
| 1996: 28-29,Dec |
The 2nd Karate-dō Gōjū-kai Asian Pacific Tournament was held in Pune, India. |
| 1997: 29-30,Nov |
The 2nd Karate-dō Gōjū-kai World Tournament was held in Sao Paulo, Brazil. |
| 1998 |
Chōjun Miyagi Sensei's 45th memorial, visiting his grave in Okinawa. |
| 1999: November 20-21 |
The 3rd Karate-dō Gōjū-kai Asian Pacific Tournament was held in Perth, Australia |
| 2001: Nov. 30 - Dec 2 |
The 3rd Karate-dō Gōjū-kai World Tournament was held in Perth, Australia |
| 2005: November 9-14 |
The 4th Karate-dō Gōjū-kai World Tournament was held in Rotterdam, Netherlands. |
| 2007: November 17-19 |
The 4th Karate-dō Gōjū-kai Asian Pacific Tournament was held in Hong Kong, China |
| 2009: September 20 |
100th Commemoration of the birth of Kaiso Gōgen Yamaguchi, will take place in Tokyo, Japan |
| 2009: October 23-26 |
5th Karate-dō Gōjū-kai World Tournament will be held in Cape Town South Africa |
| 2010 May 11-17 |
The 5th Karate-dō Gōjū-kai Asian Pacific Tournament was held in Bankok, Thailand |
| 2013 Dec |
6th Karate-dō Gōjū-kai World Tournament held in India |
| 2014 Sept. 22-29 |
1st IKGA Founder Gōgen Yamaguchi Commeorative Master's Seminar held in Japan |
| 2015 |
40th South African Gōjū-kai Championships |
| 2015 Oct. |
4 Masters Seminar for All Africa Bloc Held in Cape Town, South Africa |
| 2015 Nov. 25 - 30 |
The 6th Karate-dō Gōjū-kai Asian Pacific Tournament was held in Jakarta, Indonesia |
| 2015 |
40th Anniversary of Gōjū-kai in South America Bloc. Various celebrations, seminars, championships held in South American countries |
| 2017 |
7th Karate-dō Gōjū-kai World Tournament held in Vancouver, Canada |
| 2025 |
8th Karate-dō Gōjū-kai Global Championships will be held in Tokyo, Japan |
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