What is a grievance included in the Declaration of Independence

The first public reading of the Declaration of Independence occurred at high noon on July 8, 1776, in the Old ... to the world the reasons that led the thirteen colonies to separate from the British Empire. ... Walker dared America to live up to its self-proclaimed ideals. If all men were created equal, then why was slavery legal

is this supposed to be a question

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”