Announcement of a public assembly on January 23, 1967, on Culture Square (文化广场) in Shanghai, at that time renamed Revolution Square (革命广场). The goal of the assembly is criticizing Yang Yongzhi - 杨永直 (1917-1994), head of the Propaganda Department of the Shanghai Municipal Party Committee. He came under attack late 1966, and was forced to attend hundreds of criticism meetings to be publicly humiliated.

The organizations initiating this assembly:
Shanghai Arts Academy Literary and Art Circles Red Guards Rebellion Group Headquarters;
Shanghai Social Sciences Department Rebellion Corps;
Shanghai Municipal Party Committee Propaganda Department Rebellion Battle Formation;
Shanghai Publishing System Rebellion Headquarters;
Shanghai Press Circles Rebellion Committee;
“Red Revolution Meeting” Shanghai Jiaotong University “7-1” Rebellion Group;
Tsinghua University Jingangshan Corps stationed in Shanghai Liaison Station;
Shanghai City Dongfeng Rebellion Group;
Shanghai City Zhonghua University Teaching and Administrative Staff Rebellion Committee.