"When the sky dies, the yellow sky should stand, and there is Jiazi, the world will be fine." This is the slogan used by the yellow turban insurrectionary army that broke out during the reign of Emperor Ling of the Eastern Han Dynasty. "Heaven" refers to the Han Dynasty. In the Han dynasty, the clothes of loyalists were mainly cyan, and "yellow sky" refers to the yellow turban insurrectionary army. In A.D. 184, Zhang Jiao founded "Taiping Road" to organize hundreds of thousands of peasants into 36 "phalanxes". Propaganda "Heaven dies, Huang Tianli; Years old in Jiazi, the world is good. " Zhang Jiao and his disciples secretly agreed that on March 5, the year of Jiazi (A.D. 184), all localities would revolt at the same time. The uprising was advanced in February of that year because of the traitor's informer.