 The Minh Đường Trung Tân ("School of Teaching Goodness") emerged in the 1990s in the Vĩnh Bảo District, a rural area of the city of Hải Phòng.A local carpenter known simply as "Master Thu" claimed to have been visited at night by the spirit of 16th-century sage Nguyễn Bỉnh Khiêm, who ordered him to build a shrine in his honor.Thu owned some land, where he built and inaugurated in 1996 a shrine to Khiêm.