In 1820, the abolitionist did not attract many followers because there seemed to be no way to abandon slavery without another revolution. Since the Constitution stated that states can allow slavery, although Northerners did not want it, they felt it was not their responsibility to fight it. State leaders like John Adams, who was anti-slavery, were afraid to speak out against slavery because they feared losing the support of slave owners. During this critical time, people need a radical hero to facilitate the American Revolution. In September 1829, David Walker wrote and published APPEAL to the Colored Citizens of the World, the first published work fighting slavery and racism to come from a black man. in the United States. It was one of the most inspiring political statements of the nineteenth century. The eighty-two-page pamphlet passionately defended slavery and racial discrimination. Although David Walker's Appeal is ideologically ambitious and historically significant, his views in this pamphlet are very radical. His political opinion, his defiance of Mr. Jefferson and the Declaration of Independence, his use of religions and language can show his radicality in this pamphlet. David Walker's radicalism can be seen from his political opinion. In the preamble, David Walker declares that the reason for his writing is “to awaken in the breasts of the afflicted, degraded and sleeping brethren, a spirit of inquiry and investigation respecting our miseries and miseries in this republican Land of Freedom!!!!!” . David Walker's appeal was aimed at African American slaves. The goal was to have all citizens of color rise up and fight against slave owners…half of paper…slavery. The Appeal therefore stands as a first manifestation of radical black slavery. David Walker's call not only inspired early abolitionists, but also facilitated the American revolution of abolishing slavery. David Walker's attitude and views are very radical in the Appeal; encouraged black slaves to fight for their freedom, challenged and questioned Mr. Jefferson (who represented authority) and the Declaration of Independence. Furthermore, he also used religions and writing style in the Appeal to warn all his fellow Americans to abolish slavery. Although David Walker's appeal is very radical, his behavior and action are very reasonable. Precisely because of its radicality, more and more people are inspired and begin to support the abolition of slavery. Its radicality is a logical extension of the principles of the American Revolution.