102 years ago today, on January 17, 1923 (the first day of the twelfth lunar month), Cai Yuanpei resigned as president of Peking University in anger.

On January 17, 1923, the Chief Education Officer of Tsai Yuanbein interfered with the judicial independence, illegally demanded the arrest of Northern College and Class Teachers and Finance Secretary Rovankan, resigned angrily from the post of Chief Education Officer of the Northern College. Resigned stating: "Yuanbein witnessed the difficult time, saddened by the hopelessness of political clarity, did not tolerate the pollution of the flow, especially under this kind of educational authorities to support the education remains, to condemn the nationals and the genius," Tsai said in "Beijing University Daily" on the initiative of "no longer go to school" in Beijing University Daily. on December 18, the Northern College student assembly held, through "expulsion of Punjab", "preservation of Chai