Wang Dan
On April 21, students began organizing under the banners of formal organizations. On April 23, in a meeting of around 40 students from 21 universities, the Beijing Students' Autonomous Federation (also known as the Union) was formed. It elected CUPL student Zhou Yongjun as chair. Wang Dan and Wu'erkaixi also emerged as leaders. The Union then called for a general classroom boycott at all Beijing universities. Such an independent organization operating outside of party jurisdiction alarmed the leadership.