The book "Thoughts on the abolition of slavery before the year 1800, expressed before the Cincinnati Literary Club on November 16, 1872" is a collection of speeches and reports of prominent people on the problem of slavery before the beginning of the 19th century. The authors highlight the historical context, ideas, and perspectives on this social problem that escalated in the period leading up to the American Civil War. In their speeches, they analyze the sources of slavery, its consequences and moral aspects. The book provides a unique opportunity to better understand the importance of the movement for the abolition of slavery and the opinions of national leaders on this issue even before the 19th century. "Thoughts on the Abolition of Slavery Before 1800" is an important addition to the history of the struggle for human rights and important cultural monuments of North American society.