12 years 12 years, Zheng Tianting, Chairman and Secretary-General of Tang Tong of Beijing Municipal Education Bureau, agreed to draft a letter to President Mao Zedong by Wang Zisong, secretary of the school board. Liuchu asked the document to copy regular script, which was sent to Zhongnanhai by Mao Zedong, director of the office. In the letter, Chairman Mao was asked to write the name of the school on the occasion of Beijing's 5 1 anniversary celebration (12, 17, after the first anniversary of liberation) in order to prepare for making a new badge. The letter of recommendation is attached with a piece of paper, with a long document 1 1 cm and a width of 3. 1 cm. The rectangular frame of the picture is marked with "Peking University", and the name of Chairman Mao is written during class. 1950 March 17, the inscription on the emblem of chairman Mao of the central Committee was placed in an envelope in beibei by the secretariat, with a sentence attached: "chairman Mao sent someone to beibei to inscribe the emblem, please end the investigation."

The origin of Tsinghua patch: Ximen is engraved with four characters of joy.

Tsinghua's tall lintel [Tsinghua, written by Mao Zedong, the founding leader. 1June, 950, at the request of Tsinghua University, a staff member and student of Chairman Mao's busy schedule, he happily brushed it again and formed six series of incisive replies, "Tsinghua University". For the appearance of calligraphy, he still modestly marked: "The correct cursive script is not as good as the good stuff." Since then, Chairman Mao's inscription has been accompanied by teachers and students.