What evidence of wrongs does Jefferson provide ?

     With five simple words in the Declaration of Independence—“all men are created equal”—Thomas Jefferson undid Aristotle’s ancient formula, which had governed human  until 1776: “From the hour of their birth, some men are marked out for subjection, others for rule.” In his original draft of the Declaration, in soaring, fiery prose, Jefferson denounced the slave trade as an “execrable commerce ...this assemblage of horrors,” a “cruel war against human nature itself, violating its most sacred rights of life & liberties.” As historian John Chester Miller put it, “The inclusion of Jefferson’s strictures on slavery and the slave trade would have committed the United States to the abolition of slavery.”

Explanation:

the northwest ordinance of 1787 guaranteed basic rights for settlers and banned slavery there.