during Perry's visit. In 1858, the Dutch officer Kattendijke commented: Last phase of "Dutch" learning Following Commodore Perry's visit, the Netherlands continued to have a key role in transmitting Western know-how to Japan for some time. The Bakufu relied heavily on Dutch expertise to learn about modern Western shipping methods. Thus, the Nagasaki Naval Training Center was established in 1855 right at the entrance of the Dutch trading post of Dejima, allowing for maximum interaction with Dutch naval knowledge. From 1855 to 1859, education was directed by Dutch naval officers, before the transfer of the school to Tsukiji in Tokyo, where English educators became prominent. The center was equipped with Japan's first steam warship, the Kankō Maru, given by the government of the Netherlands the same year, which may be one of the last great contributions of the Dutch to Japanese modernization, before Japan opened itself to multiple foreign influences. The future Admiral Enomoto Takeaki was one of the students of the Training Center. He was also sent to the Netherlands for five years (1862–1867), with several other students, to develop his knowledge of naval warfare, before coming back to become the admiral of the shōguns fleet. Enduring influence of Rangaku Scholars of Rangaku continued to play a key role in the modernization of Japan. Scholars such as Fukuzawa Yukichi, Ōtori Keisuke, Yoshida Shōin, Katsu Kaishū, and Sakamoto Ryōma built on the knowledge acquired during Japan's isolation and then progressively shifted the main language of learning from Dutch to English. As these Rangaku scholars usually took a pro-Western stance, which was in line with the policy of the Shogunate (Bakufu) but against anti-foreign imperialistic movements, several were assassinated, such as Sakuma Shōzan in 1864 and Sakamoto Ryōma in 1867. Notable scholars Arai Hakuseki (, 1657–1725), author of Sairan Igen and Seiyō Kibun Aoki Kon'yō (, 1698–1769) Maeno Ryōtaku (, 1723–1803) Yoshio Kōgyū (, 1724–1800) Ono Ranzan (, 1729–1810), author of . Hiraga Gennai (, 1729–79) proponent of the "Elekiter" Gotō Gonzan () Kagawa Shūan () Sugita Genpaku (, 1733–1817) author of . Asada Gōryū (, 1734–99) Motoki Ryōei (, 1735–94), author of Shiba Kōkan (, 1747–1818), painter. Shizuki Tadao (, 1760–1806), author of , 1798 and translator of Engelbert Kaempfer's Sakokuron. Hanaoka Seishū (, 1760–1835), first physician who performed surgery using general anaesthesia. Takahashi Yoshitoki (, 1764–1804) Motoki Shōei (, 1767–1822) Udagawa Genshin (, 1769–1834), author of . Aoji Rinsō