The heritage of American revolution has been monopolized by white founders like Jefferson, Washington, and Madison, etc, but commendation should not be reserved only for whites. Black founding generation contributed to making, inventing, and managing new republic by participating in independence war, political debates, and religious organizations, etc. Blacks petitioned for their freedom to State congress, requested payment for their slave labor, pursued equality ideology by organizing Free Mason branches and Christian denominations, asked government’s acknowledgement of their citizenship, inquired Afro-American identity contemplating the history of Africa and Africans, and took the lead in antislavery movement. Black leaders devoted themselves for racial justice and black independence. Black radicals, especially, tried to construct black counter-public and counter-narrative against racial oppression. James Forten, Lemuel Haynes, Richard Allen, John Marrant, and Jacob Oson made their efforts to develop black resistance discourse through sermons, speeches, and writings. They performed a certain role of moral compass to inform public the vice of slavery. They pointed out the limits of revolutionary republicanism and criticized its conspiracy to maintain racial slavery. Black leaders asked white founders to properly practice the ideology and heritage of American revolution by exterminating slavery. The accomplishments of their activism cultivated a pioneering way for black descendants in achieving slave emancipation and legal equality in American society.