Answer: Yes, slavery violated the principle that all men are created equal.
Explanation: The Declaration of Independence stated: “"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". If we read the whole excerpt from the Declaration of Independence we can see that the founding fathers found that all individuals are found equal. Also, the founding fathers found that all human beings have the right to liberty, in this case freedom. Freedom in all forms, be it physically, mentally and emotionally.