The Treaty of Yedo is signed between Japan and Britain

Lord Elgin, the British envoy, arrived in Japan and negotiated a commercial treaty that opened Japan to British commerce. Yedo was the eastern capital of Japan and the British Embassy was opened there. Around 1869 the name of the capital was changed to Tokyo. (By John Osborne)
Source Citation
Benjamin Vincent, Haydn's Dictionary of Dates and Universal Information Relating to all Ages and Nations (New York: G.P. Putnam's Sons, 1906), 743.
    Date Certainty
    Exact
    Type
    US/the World
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