Missionary work in Japan
Arriving at Hakodate in 1861, Nicholas devoted his first years to mastering the Japanese language, which he is said to have spoken fluently by 1868. His early converts included Paul Sawabe, a former samurai and Shinto priest, remembered as the first Orthodox Japanese, who later became a priest. Conversions came amid official persecution in the early 1870s.
In 1870 Nicholas relocated the missionary center to Tokyo, where by 1873 he had established a church and a school for fifty people, and in late 1877 he founded a periodical, The Church Herald. The community grew steadily: by 1870 it numbered more than four thousand, and by the end of his life it counted some 33,000 faithful in 266 communities, served by a small body of native clergy.