Traveling back in time, we find many great people who have died doing all that they could to correct the wrong notions and understandings of the superiority and inferiority of humans. One of the greatest human being of all times, Mr. Abraham Lincoln, President of US during the American civil war. In the year 1863, it was he who declared "that all persons held as slaves" within the rebellious states "are, and henceforward shall be free." This declaration outlawed the practice and the belief of slavery. I wonder what gave this color discrimination such prominence that by the approach of the...