| Sept. 1969 |
Special Committee on the Institute of Gerontology (tentative name) was organized by order of the Governor. |
| July. 1970 |
Construction of the building began. |
| Oct. 1970 |
The Preparatory Committee for Setting-up of the Institute of Gerontology (tentative name) was organized |
| Mar. 1972 |
Construction of the building was completed.. |
| Apr. 1972 |
The Tokyo Metropolitan Institute of Gerontology (TMIG) was formally opened. |
| Oct. 1981 |
TMIG was reorganized and became a private foundation to promote active and creative research. |
| Sept. 1984 |
Agreement was reached on research collaboration between TMIG and the National Institute on Aging of the United States. |
| June. 1986 |
MIG was designated by The World Health Organization as a WHO Collaborating Center for the Health of the Elderly. |
| Mar. 1988 |
Research collaboration was established between TMIG and the Beijing Geriatric Institute, Capital Institute of Medicine, the People's Republic of China. |
| Sept. 1988 |
Scientific cooperation was established between TMIG and the Institute of Gerontology, Academy of Medical Science, Ukraine. |
| Aug. 1990 |
TMIG reorganized its laboratories into six divisions. |
| Apr. 1998 |
TMIG recognized its laboratories into eight division and Positron Medical Center. |
| Apr. 2002 |
TMIG and a foundation for regional welfare for senior citizens and the disabled were rnerged in the Tokyo Metropolitan Foundation for Research on Aging and Promotion of Human Welfare. |
| The research group system was introduced. |
| Apr. 2005 |
The core research system was introduced. |
| Apr. 2009 |
Tokyo Metropolitan Institute of Gerontology (TMIG) and Tokyo Metropolitan Geriatric Hospital (TMGH) were merged and established new organization as Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology( TMGHIG). |
| May. 2013 |
In spring of 2013, a new facility was constructed |