1952 Began assisting orphans from World War II and international children (racially mixed children) after the inauguration of the Japan-America Joint Committee for the Assistance of Orphans.
1955 Began social work on an international level after joining International Social Service (ISS: Geneva Headquarters).

1959 Sanctioned by the Ministry of Health and Welfare as Social Welfare Juridical Person International Social Services Japan.

1960 Established the Kure branch in Hiroshima to provide care for racially mixed children.

1974 Hosted the first orientation for prospective adoptive parents, which continues to this day.

1979 Began assistance for refugees under the commission of the UNHCR.

1982 Established Integration Counseling Program for Indo-China Refugees.
Began counseling service for the refugees who completed the Refugee Assistance Center Program.

1991 Began training for international social workers.

1994 Entered into a contract with the Philippines DSWD (Department of Social Welfare and Development) to improve welfare support for international children of Philippines origin.

1995 Implemented the Vietnamese Aid for Medical Care program.

1996 Started the ISSJ Kure International Exchange Association.
Began a training program in Cambodia.
Opened the Phtea Nhor Nhim Day Care Center in Cambodia.

1998 Published "Crossing the Borders with the Hand of Love - The 45 Year History of International Social Service Japan".