Симодский трактат
Lord Elgin was sent by Queen Victoria in 1858 to negotiate the trade agreement, using the delivery of the yacht as an excuse to start discussions. This led to the Anglo-Japanese Treaty of Amity and Commerce of 1858, which allowed the establishment of foreign concessions, extraterritoriality for foreigners, and minimal import taxes for foreign goods. The Japanese chafed under the "unequal treaty system" which characterized Asian and western relations during this period. The Anglo-Japanese Friendship Treaty was also followed by similar agreements with the Russians (Treaty of Shimoda, 7 February 1855).