You began your reply with an impossible scenario.
And, no, “everybody” does not know the information I posted. Quite a few people believe the United States has sole responsibility for slavery in the world. These are the same people who believe the United States has existed for over 400 years. The ignorance is astounding, particularly so when dealing with a topic so heavily freighted with leftist propaganda.
Are you serious? Do you think this thread is being discussed without everyone here knowing that we cannot travel back in time and change history?
As far as what you posted, everyone one this thread knows that information, you are not posting somewhere else, you are posting here, on this thread, to freepers.