Photo taken on Oct. 21, 2018 shows a gold button excavated from the Jiangkou stretch of the Minjiang River during an exhibition at Sichuan Museum in Chengdu, southwest China's Sichuan Province. Archaeologists found artifacts at the site of a peasant uprising at the end of the Ming Dynasty (1368-1644) from the Jiangkou stretch of the Minjiang River in Meishan, Sichuan. The ruins of Jiangkou ancient battlefield was inscribed among China's Top 10 Archeological Findings in 2017. A total of 521 cultural relics were displayed in the exhibition. Kicking off here on Sunday, the exhibition will last to Jan. 18, 2019. (Xinhua/Liu Kun)