Nitobe was in the second class of the
Sapporo Agricultural College (now
Hokkaido University). He was converted to
Christianity under the strong legacy left by
William S. Clark, the first Vice-Principal of the College, who had taught in
Sapporo for eight months before Nitobe's class arrived in the second year after the opening of the college and so they never personally crossed paths. Nitobe's classmates who converted to Christianity at the same time included
Uchimura Kanzō. Nitobe and his friends were baptized by an American
Methodist Episcopal missionary Bishop
M. C. Harris. Nitobe's decision to study agriculture was caused by the hope expressed by
Emperor Meiji that the Nitobe family would continue to advance the field of agricultural development (Nitobe's father had developed former wasteland in the north of the Nambu domain near present-day
Towada, now part of Aomori Prefecture, into productive farmland). In 1883, Nitobe entered
Tokyo Imperial University for further studies in English literature and in economics. Disappointed by the level of research in Tokyo, he quit the university and sought study opportunities in the United States. In 1884, Nitobe traveled to the United States where he stayed for three years, and studied economics and political science at
Johns Hopkins University in
Baltimore,
Maryland. In Baltimore, he became a member of the
Religious Society of Friends (Quakers). It was through a Quaker community in Philadelphia that he met
Mary Patterson Elkinton, whom he eventually married. Their only child died in infancy, but they adopted Nitobe's nephew, Yoshio, and a female relative Kotoko. He also influenced the establishment of the
Friends School in Tokyo. At Johns Hopkins, he participated in the Seminary of History and Politics, a group of graduate students and faculty in history, political science and economics. After his departure from Hopkins in 1887, a colleague read a paper written by Nitobe in 1888, "The Japanese in America,", in which he studied the first official missions sent from Japan to the United States, beginning in 1860. He later returned to Hopkins in December 1890, when he presented a paper on "Travel and Study in Germany." Also in 1890, Johns Hopkins presented Nitobe with an honorary bachelor's degree in recognition of his accomplishments despite not earning a PhD from Hopkins. While at Johns Hopkins, he was granted an assistant professorship at his alma mater, the Sapporo Agricultural College, but was ordered first to obtain a doctorate in
agricultural economics in Germany. He completed his degree after three years in
Halle University and returned briefly to the United States to marry Mary Elkinton in Philadelphia before he assumed his teaching position in Sapporo in 1891. When he returned to Japan, he had published books in
English and in
German and had received the first of his five doctorate degrees. Nitobe continued his teaching tenure at Sapporo until 1897 as he took leave from the college. He spent three years writing first in Japan and later in California. One of the books that he wrote during that period was
Bushido: The Soul of Japan. ==Meiji bureaucrat and academic==