Internet History Sourcebooks Project
Fordham University: Modern History Sourcebook: St Francis Xavier Letter From India.
This Fordham University page is a primary source piece - a letter written by Jesuit missionary St. Francis Xavier from India to his superiors in 1543.
New Advent
Catholic Encyclopedia: St. Francis Xavier
This article from The New Advent contains biographical information on the Jesuit missionary, St. Francis Xavier, thought to be the first to bring Christianity to Japan. Please note that "The Catholic Encyclopedia" is a historic reference...