BRITAIN-BIRMINGHAM-LI SIGUANG-BLUE PLAQUE-UNVEILING

(230701) -- BIRMINGHAM, July 1, 2023 (Xinhua) -- China's Ambassador to Britain Zheng Zeguang (R) and Jon Frampton, director of the University of Birmingham China Institute, unveil a blue plaque honoring Li Siguang at the University of Birmingham in Birmingham, Britain, June 29, 2023. A blue plaque honoring Li Siguang, a late Chinese geologist and founder of geological mechanics, was unveiled at the University of Birmingham on Thursday. (Xinhua/Han Yan)