| April 1987 | Formation of a Preparatory Committee for Establishment of the United Graduate School of Agricultural Sciences, Kagoshima University |
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| April 1988 | Establishment of the United Graduate School of Agricultural Sciences（ 3-year Doctoral Program） comprising four graduate programs from three universities, Kagoshima University, Faculties of Agriculture and Fisheries, University of Miyazaki, Faculty of Agriculture, and Saga University, Faculty of Agriculture |
| April 1992 | Participation of University of the Ryukyus in the United Graduate School |
| April 2004 | Four Universities were reconfirmed their participation in the United Graduate School of Agricultural Sciences based at Kagoshima University under new treaties that turned national universities into independent administrative entities |
| April 2005 | In collaboration with Takara Bio Inc., a new educational field was integrated into the Biochemistry and Applied Resource Chemistry Courses |
| April 2007 | Reestablishment of the United Graduate School of Agricultural Sciences consisting of four graduate programs from three universities, Kagoshima University, Saga University, and University of the Ryukyus |
| April 2009 | Reorganized from 4 Courses 11 Major Chairs to 3 Courses 9 Major Chairs(Rengo-Koza) |
