Introduction to Fraternity Screen Wall: Participating in the Revolution of 1911 was the most glorious page in Yan Xishan’s life. When Sun Yat-sen inspected Taiyuan in September 1912, he said: "Last year's Wuchang Uprising was successful in less than half a year. This is a testament to the power of Shanxi and the contribution of Yan Jun and Baichuan. ... If it were not for the Shanxi Uprising and the interruption of north-south transportation, the world would be in trouble. It’s unknown.” Yan Xishan is the only person in China to receive such an evaluation. In the former residence of Yan Xishan, there is a note and evaluation written by Sun Yat-sen on him - "fraternity".