Giving himself the title of "Great Teacher", he led the Yellow Turban Rebellion with his younger brothers Zhang Bao and Zhang Liang in a campaign called "The Way of Heaven" or "The Way of Peace". He and his brothers had their own power: Zhang Bao was the General of Land, and his brother General of the People; and Zhang Jiao was the General of Heaven. The Yellow Turbans claimed to be Taoists, and rebelled against the Han because of the high taxes placed against them. They conquered much in the early years of the rebellion, but when the Han sent out a distress call, gaining the talent of people such as Liu Bei, Cao Cao and Sun Jian, the lack of ability that his generals held clearly showed itself. As the Yellow Turbans still remained somewhat capable even in face of their more powerful foe, they were nonetheless torn apart upon the death of their leader, Zhang Jiao, and were ultimately quelled in subsequence. (Wikipedia)