it was wrong that FN children were taken from their families, that we interned Japanese in WWII, that we hung a man for stealing a cow, that the south went to war to protect their right to enslave another human.  It was wrong that Indians slaughtered woman and children for daring to cross “their land”,   it was wrong for Indian tribes to attack and kill  other tribes for sport. It was wrong to force FN to reservations and kill them when they did not abide. It was wrong for Viking to invade England and slaughter thousands of innocents. It was wrong for cavemen to murder neighboring groups.   

How far back do we go ? What is really wrong is to live in the past, to judge circumstance we are hundreds, thousands of years removed from.  Learn from the past yes ! But if we drive to the future looking in the rear view mirror it is not likely to end well. 

True freedom, true justice is gained when one stops being a victim of the past and becomes a leader to the future.