Facts : 1 Shogun and Christianity Followers of Christianity first began appearing in Japan during the 16th centurybr Facts : 2 Oda Nobunaga, however, embraced Christianity and the Western technology that was imported with it, such as the musketbr Facts : 3 Though Christianity was allowed to grow until the 1610s, Tokugawa Ieyasu soon began to see it as a growing threat to the stability of the Shogunatebr Facts : 4 As Ogosho ( Cloistered Shogun ), he influenced the implementing of laws that banned the practice of Christianitybr Facts : 5 The ban of Christianity is often linked with the creation of the Seclusion laws, or Sakoku, in the 1630s