Why was Obama's election a political watershed

Barak Obama was the American president who delivered a lecture on repudiating the inflammatory remarks on the pastor. He has summarised on a race of America.

He said that it is the best time to move on to our racial wounds. This speech makes history. It was Obama's victory history. Obama was the great symbol of the dream of American history. It requires the hard dream, discipline, work, and patience to reach a height in the country.