安政あんせい大獄始たいごくはじまる

安政五年あんせいごねん(1858)四月二十三日しがつにじゅうさんにち彦根藩主井伊直弼ひこねはんしゅいいなおすけ大老たいろうとなった。同年六月十九日どうねんろくがつじゅうくにち日米修好通商条約にちべいしゅうこうつうしょうじょうやく調印ちょういんし、二十一日朝廷にじゅういちにちちょうてい奏上そうじょう二十二日諸大名にじゅうににちしょだいみょう通告つうこくした。このことがきっかけとなって尊皇攘夷論そんのうじょういろんおおいにたかまり、つい九月七日梅田雲浜くがつなのかうめだうんぴんが、その後鵜飼吉左衛門父子ごうがいきちざえもんふし頼三樹三郎らいみきさぶろう橋本左内等はしもとさないとうとらえられ、いわゆる「安政あんせい大獄たいごく」となり、そのわざわいはついはぎにあった松陰しょういんにまでおよんだ。

The start of The Ansei Great Purge.

On April 23rd, 1858 (the 5th year of Ansei era), Ii Naosuke, the feudal lord of Hikone, became the Tairō (chief minister) of Japan. On June 19th of the same year, Japan signed the Treaty of Amity and Commerce with the United States, and on the 21st, it was presented to the Imperial Court. On 22nd, it was announced to various daimyo.
As a result of these events, the Sonnō jōi movement (the Movement advocating reverence for the Emperor and the expulsion of foreigners) gained significant momentum. On September 7th, Umeda Unbin was arrested, followed by others like Ukai Kichizaemon and his son, Raimi Kisaburō, and Hashimoto Sanai, leading to what is known as the 'Ansei Great Purge.' The repercussions of this purge eventually reached Yoshida Shoin in Hagi.