Continuation of the discussion of the Edo Era.  I will focus on the period of time beginning in the 19th century.The class hierarchy system continues to erode and invert.  The arrival of American Commodore Perry will end Japan's isolationism, and set into motion her modernization and westernization efforts.From the American expeditions to Japan, two treaties were signed.  The Treaty of Kanagawa, the first ever between Japan and the United States; and the Harris Treaty.  The Harris treaty built upon the measures agreed to in the first treaty.  Other nations would seek and receive similar treaties with Japan.  The Japanese viewed all of these treaties as humiliations.I also will make comparisons between Japan and China and their reactions from the foreign nation aggressions.