Japan has its own unique era name. It is so deeply linked to the Japanese people that it is inseparable from them. Sometimes, the dates on official documents are mixed with the western calendar, which I feel is complicated, but still, I would like to cherish what is uniquely Japanese.
The English script for this episode can be found here. This will surely help you understand this entire episode. https://toralog.jp/podcast-episode78/
I introduce my hometown in English on YouTube. https://www.youtube.com/channel/UCJyb6vceAjGazPPGjJs-1Yw It has Japanese subtitles, so I think it'll be useful for your study! Please take a look at that as well!