In my previous research, I examined the contributions of the Rockefeller Foundation (RF) to the development of the Japanese healthcare system during the post-World War II period. That work led me to the question of how the RF contributed to the development of Japan's cultural exchange with other countries during the same period. The role of philanthropy in areas of public policy, such as healthcare and international cultural exchange, has not been examined in great depth, although there has been research on the role of philanthropy in U.S. diplomacy. My research at the Rockefeller Archive Center (RAC) examined several aspects of the RF's contribution to international cultural exchange policy in Japan. In particular, I focused on: 1) the role of Charles Burton Fahs as the director of humanities at the RF 2) the role of collaboration between the U.S. State Department and the RF and 3) the role and profound involvement of John D. Rockefeller 3rd (JDR 3rd) in the creation of the International House of Japan, which in 1955 became the first international cultural exchange center in Japan.