【6月11日は何の日】50年前、田中角栄氏が「日本列島改造論」を発表 | ツギノジダイ 【6月11日は何の日】50年前、田中角栄氏が「日本列島改造論」を発表 | ツギノジダイ
Data source
Japan Disasters Digital Archive (RIJS, Harvard University)
This Archive (JDA) is an online portal to digital materials, designed and maintained by the Reischauer Institute of Japanese Studies at Harvard University. The materials recorded the cascading series ...
Last updated
October 9, 2026