Photo taken in east China's Shandong Province on Sept. 2, 2019 shows a piece of shipwrecked relic of the Dingyuan Battleship, the flagship vessel of the Beiyang Fleet of the Qing Dynasty (1644-1912) sunk in the First Sino-Japanese War. Chinese archeologists said Monday they have confirmed the wreck site of a Chinese battleship sunk in the Yellow Sea by the invading Japanese fleet in 1894. (Xinhua/Wang Yang)