1836 – Born on the 25th of August.
1862 – He was sent to the Netherlands, where he studied naval warfare.
1868 – He refused to deliver his warships, and escaped to Hakodate, Japan with the whole Tokugawa navy.
1872 – He was pardoned by the new Meiji government from prisoned.
1874 – He was appointed as a vice-admiral.
1875 – He was sent to Russia to negotiate the Treaty of Saint Petersburg.
1880 – He rose as high as Navy Minister of the Imperial Japanese Navy.
1885 – He again showed his skills as a diplomat by assisting Ito Hirobumi in concluding the Treaty of Tientsin.
– He was Japan’s first minister of communications.
1887 – He was granted the rank of a viscount as well as membership in the Privy Council.
1888 – He served as a minister of agriculture and commerce.
1889 – He served as a minister for education.
1891 – He served as a foreign minister.
1908 – He died on the 26th of August.