Christianity in Japan (source google, "christianity in japan" FIRST LINK)
PRESENT:
Today, about one to two million Japanese are Christians (about 1% of Japan's population). Most of them live in Western Japan where the missionaries' activities were greatest during the 16th century.
A few Christian customs have become quite popular also among the non-Christian population. Such customs are the wearing of white dresses at weddings or the celebration of St.Valentine's Day and, to a certain grade, also Christmas.