In the 1940s, Mr Wen Yiduo, a professor at Kunming United University, was not paid enough to support his family, his wife was ill, and his family had many children, making life difficult to maintain. He once took part in amateur courses in middle school to earn money to support his family. But after only one year of teaching, he was expelled from the school on the charge of "spreading democracy and freedom to students", a friend's idea: engraving. As a result, in the market of Kunming, there appeared the "running sample" printed by Wen Yiduo. And the small business done by acquaintances can hardly make money. In desperation, Wen Yiduo prepared a table and planned to set up a stall. Wen Yiduo's printing stall was only set up for one day, and then he was persuaded to come back. But how can a family live without a stall? Finally, President Mei Yiqi contacted Zhu Ziqing, Shen Congwen and other professors 1 1, and jointly published an advertisement for Wen Yiduo in the newspaper, asking him to "set up an office" at home to engrave for others. The advertisement stipulates the provisions of the "Golden Stone Running Example": "Lithography 1200 yuan, the tooth print is 3,000 yuan per word, and the border payment is counted as one word. If it is too big, it will be doubled." Kunming people have a hobby of collecting ivory seals, and with the help of university professors, their business is endless. For more than two years, Wen Yiduo left more than 1400 prints on the printed spectrum. Over time, Wen Yiduo had a big pimple on his finger and his eyes were blurred. Wen Yiduo laughed at himself: "I am a handicraft worker. No matter how hard it is, it must be engraved! " 1925 In May, Wen Yiduo couldn't stand the discrimination against the yellow race by the "Jin and Yuan Empire". He ended his life as a "fugitive" one year ahead of schedule and has taught in Beijing, Nanjing, Wuhan and Qingdao. 1937 12 13 Nanjing fell, and the national temporary university composed of Tsinghua, Peking University and Nankai was moved from Changsha to Kunming and changed to Southwest United University. Wen Yiduo pays attention to the development of the current situation while teaching. 1944 In the early summer, he expressed his wish to Zhou Xinmin, the producer of * * *. After requesting the party organization, Zhou Xinmin told Wen Yiduo that his participation in the China Democratic League was more conducive to playing a role in the democratic movement.