There is widespread disagreement among historians about the turning point of the American Civil War. A turning point in this context is an event that occurred during the conflict after which most modern scholars would agree that the eventual outcome was inevitable. While the Battle of Gettysburg in July 1863 is the event most widely cited as the military climax of the American Civil War (often in combination with the Siege of Vicksburg, which concluded a day later), there were several other decisive battles and events throughout the war which have been proposed as turning points. These events are presented here in chronological order. Only the positive arguments for each are given.
At the time of an event, the fog of war often makes it impossible to recognize all of the implications of any specific outcome. Only hindsight can fully reveal the endpoint and all of the developments that led up to it. For this reason, contemporary observers may lack confidence in predicting a turning point. Many of the turning points of the Civil War cited here would not have been recognized as such at the time.
He was a diff. color citizen and he made a speech after rosa parks (diff color) decided to refuse to give up her seat after a long day at work. So he made a " I have a dream" speech and later on he got assassinated in his house.