Howard Zinn states that the Constitution only addresses how slaves were to be counted in terms of population, and did not fully settle the idea of slavery. As a result of their avoidance of addressing slavery, it became one of the main issues that led to the civil war. Over the years slavery was a topic of controversy in the North and the South. In fact, the Founding Fathers did not want a balance, except one which kept things as they were, a balance among the dominant forces at that time.
What Zinn was trying to say was that the Constitution did not pay much attention to slavery and its fate. There were two writers of the time who spoke out against slavery, even though the law made it legal. Ralph Waldo Emerson and William Lloyd Garrison. They did not support a Constitution which allows people to be treated as property, and believes that the issue of slavery must be settled. Not addressing the problem of slavery resulted in it being much more difficult to deal with after being ignored for so long. The writers of the Constitution can be blamed for not settling the issue of slavery, and leaving it to grow and expand into the largest cause for the division of the union, and ultimately the Civil War.
Among the evidence that Zinn cites about the approval of the Constitution was also another process which exposed the emerging political differences of the new nation and eventually led to Civil War. During this process there was a conflict between Federalists and Anti-Federalist who supported and rejected different things. But although the Anti-Federalists believed that such a