Throughout the war, Nikolai wrote his diary; indeed this period marks the climax of his diary writing. The war ended in September, 1905. In April, 1906, Bishop Nikolai was elevated to the dignity of Archbishop. Six years later, on February 16 (3 O. S.), Nikolai — the Apostle to Japan — passed away.
In 1911, just before his death, the Japanese Orthodox Church numbered (in addition to Archbishop Nikolai) 1 bishop, 40 priests and deacons, 15 precentors (regents), 121 catechists, 31984 Orthodox Christians, and 265 churches and houses of prayer.
The enlightenment of Japan during the Meiji era encompassed the westernization of Japanese politics, social relations, industry and so forth. The westernization of Japan in the field of religion meant the implantation of Christianity, which has since then obtained a considerably wide acceptance in the Japanese people and has had a great influence upon their spiritual life.
However, the Christianity newly implanted in Meiji Japan was not a single kind. It comprised at least three varieties: Catholicism, Protestantism, and Orthodoxy, each of which had its own characteristic influence on the Japanese people. (For the reopened Japan, Orthodoxy introduced from Russia was one of the ’western’ faiths.)
The history of Protestant missions in Japan has been investigated in detail. Protestantism spread mostly among those young Japanese intellectuals who were eager to study ’Western science’. From the start, Protestant missionaries in Japan made use of the English language (the indispensable key to Western learning) to attract young Japanese. (Please see the article «Protestant Mission» by Masao Takenaka in The Cyclopedia of the History of Christianity in Japan, Tokyo, 1988.)
The history of Catholic missions in Japan, according to the article «The History of Christianity in Japan» by Arimichi Ebisawa in the above–mentioned Cyclopedia, has not yet received a thorough study, except in the area referred to as ’ the revival of early Christianity in japan’. Studies of the diplomatic history of the Catholic Church and of monastic orders have been published, but we do not yet have a complete history of Catholicism in Japan.
The history of the Orthodox Church in Japan, though it was the second largest Christian sect after Catholicism, has received much less attention than that of the Catholic Church. The entire picture of its missionary activities, its relation with the Russian Orthodox Church, and the characteristics of its faith has not yet been provided. There have been few students of the history of the Orthodox Church in Japan.
It is true that we have basic data for the compilation of its history during the Meiji era — for example, the twice–monthly newsletters Kyokai–Hochi (1877–1880) and Seikyo Shimpo (1880–1912). And two attempts at the history of the Church, Nihon Seikyo Dendoshi, edited by Kisaburo Ishikawa, and The Life and Deeds of Archbishop Nikolai, edited by Fr. Peter Shibayama, were published in 1901 and 1936 respectively. But they don’t give us a ’bird’s–eye view’ of the whole history of the Church. We must say that the history of the Japanese Orthodox Church and the achievements of Nikolai and his faithful followers during the Meiji
era have long remained outside the mainstream of research interests concerning the history of Christianity in Japan.
Only recently have some researchers begun to shed light on this subject. Since the late 1970s, they have been writing books and papers about these subjects, and have produced Japanese translations of the papers and reports written by Nikolai which were published in Russian journals. Also, many local Orthodox churches in Japan, upon celebrating their centennials, published their own histories. As a result of these recent works, various aspects of the history of the Japanese Orthodox Church are gradually being brought to light.
The Diaries of St. Nikolai of Japan provide materials of inestimable value for the study of Church history. In these diaries, we find many interesting and valuable facts (especially about the main center of the Orthodox mission in Japan) which have remained hitherto unknown. With these diaries, the field of study will move forward with rapid strides and will rest upon much firmer and objective bases.
The Diaries contain the private diaries kept by Nikolai, founder and head of the Japanese Orthodox Church. They are the first and most reliable source for historical knowledge of the Church. There were many hidden facts in its history which were kept secret between Nikolai and the persons concerned, and which we could not possibly be aware of without seeing his diaries.
From that source we may learn, for example, how Nikolai was supported financially by the Holy Synod and Missionary Society, and how he felt about the living conditions of Russian prisoners of war in Japan, as well as how he rated the efficiency of his Russian colleagues and Japanese catechists.