The book "Speech of Mr. Cushing, of Massachusetts, on the Right of Petition, in Relation to Petitions for the Abolition of Slavery and the Slave Trade in the District of Columbia. In the House of Representatives, January 25, 1836," by Caleb Cushing is one of the key speeches in American history that influenced the debate over the abolition of slavery. In this important speech, he expresses his views on the right of citizens to petition the government to abolish the system of slavery and human trafficking in the District of Columbia. Cushing carefully examines unpopular topics of the time, trying to draw attention to issues of justice and humanism. His arguments were a huge step forward in the direction of emancipation and abandonment of the system of slavery in the United States.