Kinmon incident
The Kinmon incident (禁門の変, Kinmon no Hen; "Forbidden Gate Incident" or "Imperial Palace Gate Incident"), also known as the Hamaguri Gate Rebellion (蛤御門の変, Hamaguri Gomon no Hen; "Hamaguri Imperial Gate Incident"), was a rebellion against the Tokugawa shogunate in Japan that took place on 20 August [lunar calendar: 19th day, 7th month], 1864, near the Imperial Palace in Kyoto. == History == Starting with the Convention of Kanagawa in 1854, within a few years foreign powers forced the shogun dynasty to abandon its isolationist policy (sakoku).