| March 1946 | Okayama Agricultural College established |
|---|
| May 1949 | Okayama University established; Faculty of Agriculture (Department of Agriculture and Department of Horticulture) organized as a faculty of Okayama University |
|---|
| October 1949 | Okayama Agricultural College consolidated with Okayama University |
|---|
| April 1950 | Research farms (Okayama Research Farm and Hachihama Research Farm) and Research Forest established |
|---|
| March 1951 | Okayama Agricultural College abolished |
|---|
| April 1951 | Ohara Institute for Agricultural Research affiliated with Okayama University |
|---|
| April 1953 | Department of Animal Husbandry established |
|---|
| July 1953 | Ohara Institute for Agricultural Research reorganized into a research institute of Okayama University |
|---|
| May 1955 | Hachihama Research Farm opened in Hachihama-cho, Tamano City |
|---|
| April 1959 | Postgraduate Course in Agriculture established |
|---|
| April 1961 | Department of Agrochemical Bioscience established |
|---|
| February 1964 | Honjima Research Farm opened in Honjima-cho, Marugame City, Kagawa Prefecture |
|---|
| April 1966 | Department of Agricultural Engineering established |
|---|
| April 1971 | Postgraduate Course in Agriculture abolished |
|---|
| November 1978 | Tsudaka Livestock Farm opened |
|---|
| April 1985 | Research Forest abolished |
|---|
| April 1986 | Five Departments of Agriculture, Horticulture, Animal Husbandry, Agrochemical Bioscience and Agricultural Engineering reorganized into a single department, the Department of Agricultural Sciences |
|---|
| October 1994 | Department of Agricultural Infrastructure Development and Conservation abolished; Department of Agriculture and Forest Production Ecology and Department of Regional Resources Management newly established |
|---|
| April 1999 | Departments reorganized with the restructuring of the Faculty of Agriculture |
|---|
| April 2002 | Research farms reorganized into the Field Science Center |
|---|
| April 2004 | Okayama University incorporated as the National University Corporation of Okayama University |
|---|
| April 2006 | Departments reorganized into four specialized Courses with the restructuring of Faculty of Agriculture |
|---|
| March 2012 | Honjima Research Farm closed |
|---|
