In the 1620s, officials in Nagasaki began to make people step on fumie, Christian images, to prove that they were not Christians. Sources differ on the first year, 1626 or 1629. Some Christians stepped on the images and kept their faith in secret.
In 1865, hidden Christians of Urakami village confessed their faith. On February 24, 1873, the government removed the notice boards that banned Christianity. In 2018, the sites of the hidden Christians of the Nagasaki and Amakusa region became a World Heritage site.