Introduction to Ruiyan Thirty-Seven Cave Heavens: Qi Jiguang inscribed "Ruiyan Thirty-seven Cave Heavens" in the first year of Longqing in the Ming Dynasty (1567).
Introduction to Ruiyan Thirty-Seven Cave Heavens: Qi Jiguang inscribed "Ruiyan Thirty-seven Cave Heavens" in the first year of Longqing in the Ming Dynasty (1567).