The Tianhou Palace in Quanzhou was built in 1196 AD, the second year of Qingyuan in Song Dynasty. Quanzhou is the largest port in the Song and Yuan Dynasties. Mazu became the sea god of Quanzhou because she was introduced to Quanzhou port where overseas traffic and trade were flourishing. Quanzhou Tianhou Palace is the first major cultural relic protection unit in Mazu Temple in mainland China, which was approved and announced by the State Council.