He never resigned although a lot of people hated him.
However, the day was especially a celebrating occasion.
Japan's Emperor became the longest emperor throughout the history.
Few people knows this historical event.
Probably, this coincidence is "sontaku".
"Hypotheses are included.
https://globalvoices.org/2020/09/27/a-m ... yoshihide/
https://www.google.co.jp/search?q=%E5%A ... =882&dpr=1
https://www.google.co.jp/search?q=sonta ... =882&dpr=1