Sectional Frames Im Looking For Help On A 1987 DBQ Dealing With The Civil War And Disunion.?

Im looking for help on a 1987 DBQ dealing with the Civil War and Disunion.? - sectional frames

The Constitution 1850th originally conceived as an instrument of national unity has become a source of discord and tension of the section, and had finally to the failure of the Union it created. "With these documents and your knowledge of the period 1850-1861, the validity of this statement (1987, DBQ). That is the question. If someone can give me a text that would have already written, or use just too much good information be estimated.