On this day 109 years ago, on August 31, 1916 (August 3, 1916 in the lunar calendar), Cai E traveled east to Japan to recuperate. On August 31, 1916, Cai E suddenly suffered from a throat disease and was transferred to Japan to recuperate. On July 6, the Beijing government appointed Cai E as the Sichuan overseer and provincial governor. After taking over, Cai E studied the plan to rebuild Sichuan with the secretary and chief of staff in Shanghai. At the end of July, Cai arrived in Chengdu with an illness. He will join the Guizhou and Sichuan armies in Sichuan and Yunnan to rectify, formulate reward and punishment regulations, and unify finances, and initially deal with some urgent post-war matters. However, the illness worsened day by day, and he could not continue to work normally. He had to call the Beijing government to allow leave to recuperate. On August 7, the Beijing government approved Cai E's temporary resignation and recuperation. On the 9th, Cai left Chengdu. During Cai E's stay in Chengdu, he visited the Gentleman Conference in person and expressed that Sichuan was rich and promising, and he was willing to manage Sichuan with all his heart for a long time. He held a military and political meeting to make arrangements for the demobilization and personnel in Sichuan. After the meeting, he told Xiong Kewu and others that he originally wanted to work in the central government, but now he didn't want to go, and he would still return to Sichuan after he recovered. After Cai left Chengdu, he rested in Shanghai for a few days. He asked Liang Qichao to telegraph Dai Kan several times, asking him to persuade Cai not to leave Sichuan immediately, to recuperate in Chongqing first, and to leave after Dai Kan established himself in Sichuan. But at this time, Cai E was so weak that he couldn't even take two or three steps, and his voice was weak, unable to execute Liang's intentions.