La Vang
The Tây Sơn dynasty, founded after reunited Vietnam, began a level of persecution, though became even more serious under Emperor Cảnh Thịnh, who issued massacre on Christians. Under the circumstance of oppression, Christians sought refuge in La Vang, where they reported about the Marian apparition in the same place, known today as Our Lady of La Vang. Pope John Paul II had acknowledged the importance of La Vang and expressed desire to rebuild the Catholic Church, ruined during the Vietnam War.