Hello. I’m Koichi Yoshizuka. Every day I tweet about events that happened 100 years ago in Japan. Mainly for my own study. https://twitter.com/KoichiYoshizuka I am interested in modern Japanese and Chinese diplomatic history, economic history, and business history. D. student at Waseda University Graduate School of Social Sciences, Liu Jie Seminar. In this blog, I will occasionally post about events in Japan that happened 100 years ago, mainly in English. I hope it will be useful to those who are interested in modern Japanese history.