Ansei Treaties

The Ansei Treaties (Japanese:安政条約) or the Ansei Five-Power Treaties (Japanese:安政五カ国条約) are a series of treaties signed in 1858, during the Japanese Ansei era, between Japan on the one side, and the United States, Great Britain, Russia, Netherlands and France on the other. The first treaty, also called the Harris Treaty, was signed by the United States in July 1858, with France, Russia, Britain and the Netherlands quickly followed within the year: Japan applied to the other nations the conditions granted to the United States under the "most favoured nation" provision.