It was in 1865 when Fr. Petitjean dramatically met crypto-Christians at Oura Cathedral in Nagasaki. Japan had been closed for 250 years and Cristianity outlawed. These Christians had hidden all that time. About 60 titles by Fr. Petitjean from 1868 to 1883 were published in secret since the Edo Shogunate had banned Christianity. In 1873, the Ban on Christianity was abolished.