As far as I know, Dr. Sun Yat-sen knew that his illness was hopeless 17 days before his death, that is,1February 24, 925, and made three wills in advance, namely, a will, a family will and a suicide note to the Soviet Union. The first two wills were dictated by Sun Yat-sen and recorded by Wang Jingwei. The suicide note to the Soviet Union was dictated by Sun Yat-sen in English and recorded by his Soviet adviser Bao Luoting. When Dr. Sun Yat-sen dictated his will, Song Ziwen, Shao Yuanchong, Wu Jingheng, Dai Ansai, He Xiangning, Zou Lu, Dai and others all signed the will as witnesses. Sun Yat-sen originally wanted to sign it, but he couldn't bear to make Soong Ching Ling sad, because he heard her crying in the next room, so he didn't sign the will this day. It was not until the early morning of March 1 1 that he realized that he had not lived long before he added his name to his will.