| 0 yrs | Soichiro Honda was born in Yamahigashi, Japan | 1906 |
| 15 yrs | At age of 15, without any formal education, Soichiro Honda left to Tokyo, 270 kilometers away from his home town, to take an apprenticeship at an automobile repair shop | 1921 |
| 31 yrs | Honda invented his first piston ring | 1937 |
| 39 yrs | Established Honda Technical Research Institute and as a chief engineer engaged in the researches on various fields of machine manufacturing/engineering | 1945 |
| 42 yrs | Soichiro Honda incorporates Honda Technical Research Institute and renames it Honda Motor Co., Ltd., capitalized at one million yen | 1948 |
| 43 yrs | Honda introduced his 98cc two-stroke motorcycle appropriately named 'Dream' | 1949 |
| 48 yrs | Honda declares intention to race in Isle of Man Tourist Trophy race in the U.K. (eventually participating for the first time in 1959) | 1954 |
| 49 yrs | Honda leads Japan in motorcycle production volume | 1955 |
| 52 yrs | Honda launches Super Cub motorcycle in Japan, helping make Honda the sales leader | 1958 |
| 53 yrs | Honda establishes American Honda Motor Co., Inc. The Super Cub, the Dream and the Benly motorcycles are the first products. | 1959 |
| 57 yrs | Honda was the top selling motorcycle brand | 1963 |
| 67 yrs | Resigned from the presidency at Honda Motor and became Senior Advisor | 1973 |
| 71 yrs | He established Honda Foundation | 1977 |
| 77 yrs | Completely resigned from Honda Motor and became Senior Advisor ad vitam | 1983 |
| 85 yrs | Soichiro Honda expired of liver failure | 1991 |
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