 Complete the following phrase:  In 1858 Curtius made a ceremonial visit to Edo as representative of the King William III of the Netherlands to pay tribute to Shogun Tokugawa Iesada. He was accompanied by his secretary Dirk de Graeff van Polsbroek, who left a description of the voyage to Edo in his diary. In Edo, Curtius found that the American Consul Townsend Harris had concluded the 