Why did Thomas Jefferson include grievances in
the Declaration of Independence?

The long list of grievances refers to the grievances the US had against England, which are outlined in the Declaration of Independence.  Jefferson lists the grievances as a way of highlighting the various reasons why the colonies are delcaring their independence. The long list showed that the Americans were not just harping on a few small issues.

Explanation:

answer; /// slavery should be outlawed in the new country, was part of the initial draft of the declaration of independence, but not part of the final

c-three

explanation:

legislative, executive and judicial