Townsend Harris, the first US Ambassador to Japan, arrived in Japan in 1856 to negotiate a trade agreement. The United States and Japan signed their first true commercial treaty, sometimes called the Harris Treaty, in 1858.Harris Treaty, (July 29, 1858), agreement that secured commercial and diplomatic privileges for the United States in Japan Application Process. 1. Agreement to Privacy Policy. "Agreement"). In the event of any conflict between this Addendum and the Agreement and the. Addendum, this Addendum shall control. Seller has made available to Buyer true, correct and complete copies of the Applicable Contracts listed on Exhibit A-3 and all amendments thereto. This exhibition takes a fresh look at the art of Japan's Meiji era (1868–1912), four remarkable decades that propelled the country into the modern era. Seller has made available to Buyer true, correct and complete copies of the Applicable Contracts listed on Exhibit A-3 and all amendments thereto.