What is the main reason the US Civil War started? Base your response on your own interpretation of the historical evidence. ​

slavery

Explanation:

The Civil War started because of uncompromising differences the free and slave states over the power of the national government to prohibit slavery in the territories that had not yet become states.

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.