日露和親条約
In 1852, on learning of American plans to send Commodore Matthew Perry in an attempt to open Japan for foreign trade, the Russian government revived Putyatin's proposal, which received support from Grand Duke Konstantin Nikolayevich of Russia. The expedition included several notable Sinologists and a number of scientists and engineers, as well as the noted author Ivan Goncharov, and the "Pallada" under the command of Ivan Unkovsky was selected as the flagship. After many mishaps, Putyatin signed three treaties between 1855 and 1858 by which Russia established diplomatic and commercial relations with Japan. (see Treaty of Shimoda)