Kirishitan

The Japanese term Kirishitan (吉利支丹, 切支丹, キリシタン, きりしたん), from Portuguese cristão (cf. Kristang), meaning "Christian", referred to Catholic Christians in Japanese and is used in Japanese texts as a historiographic term for Catholics in Japan in the 16th and 17th centuries.

Modern Japanese has several words for "Christian", of which the most common are the noun form kirisuto-kyōto キリスト教徒, and also kurisuchan クリスチャン. The Japanese word kirishitan キリシタン is used primarily in Japanese texts for the early history of Roman Catholicism in Japan, or in relation to Kakure Kirishitan, hidden Christians. However, English sources on histories of Japan generally use the term "Christian" without distinction.

Christian missionaries were known as bateren (from the Portuguese word padre, "father" or "priest") or iruman (from the Portuguese irmão, "brother"). Contemptuous transcriptions such as 切支丹 and 鬼利死丹 (which use kanji with negative connotations) came into use during the Edo Period when Christianity was a forbidden religion.

Portuguese ships began arriving in Japan in 1543, with Catholic missionary activities in Japan beginning in earnest around 1549, mainly by Portuguese-sponsored Jesuits until Spanish-sponsored mendicant orders, such as the Franciscans and Dominicans, gained access to Japan. No Western women came to Japan. Of the 95 Jesuits who worked in Japan up to 1600, 57 were Portuguese, 20 were Spaniards and 18 Italian. Francis Xavier, Cosme de Torres (a Jesuit priest), and João Fernandes were the first to arrive to Kagoshima with hopes to bring Christianity and Catholicism to Japan. At its height, Japan is estimated to have had around 300,000 Christians. Catholicism was subsequently repressed in several parts of the country and ceased to exist publicly in the 17th century.

Religion was an integral part of the state and evangelization was seen as having both secular and spiritual benefits for both Portugal and Spain. Indeed, Pope Alexander VI's Bulls of Donation (1493) commanded the Catholic Monarchs to take such steps. Wherever Spain and Portugal attempted to expand their territories or influence, missionaries would soon follow. By the Treaty of Tordesillas (1494), the two powers divided the world between them into exclusive spheres of influence, trade and colonization. Although, at the time of the demarcation, neither nation had any direct contact with Japan, that nation fell into the sphere of the Portuguese.

The countries disputed the allocation of Japan. Since neither could colonize it, the exclusive right to propagate Christianity in Japan meant the exclusive right to trade with Japan. Portuguese-sponsored Jesuits under Alessandro Valignano took the lead in proselytizing in Japan over the objection of the Spaniards, starting in 1579. The fait accompli was approved in Pope Gregory XIII's papal bull of 1575, which decided that Japan belonged to the Portuguese Diocese of Macau. In 1588, the diocese of Funai (Nagasaki) was founded under Portuguese protection.

In rivalry with the Jesuits, Spanish-sponsored mendicant orders entered into Japan via Manila. In addition to criticizing Jesuit activities, they actively lobbied the Pope. Their campaigns resulted in Pope Clement VIII's decree of 1600, which allowed Spanish friars to enter Japan via the Portuguese Indies, and Pope Paul V's decree of 1608, which abolished the restrictions on the route. The Portuguese accused Spanish Jesuits of working for their homeland instead of their religion. The power struggle between Jesuits and mendicant orders caused a schism within the diocese of Funai. Furthermore, mendicant orders tried in vain to establish a diocese on the Tōhoku region that was to be independent from the Portuguese one.

The Roman Catholic world order was challenged by the Netherlands and England. Its principle was repudiated by Grotius's Mare Liberum. In the early 17th century, Japan built trade relations with the Netherlands and England. Although England withdrew from the operations within ten years under James I due to a lack of profitability, the Netherlands continued to trade with Japan and became the only European country that maintained trade relations with Japan until the 19th century. As trade competitors, the Protestant countries engaged in a campaign against Catholicism, and this subsequently adversely affected shogunate policies toward the Iberian kingdoms.