The South tried to a0 from the United States

The South tried to Secede from the United States.

Explanation:

The beginning of the American Civil War, encompasses the flow of events, which was basically started on 20th December, 1860 and gone upto June 8 of the following year. From such events the word "Secession" got renewed, although it was first time used in 1776 when South Carolina demanded separation as the continental congress took decision to charge tax on colonies.

But during late 17th century nearly 11 states from Lower and Upper South isolated their relationship from the Union. The reasons were many like South was supportive of slavery in order to fetch out more labors and follow development by ignoring other's rights.