Many lessons.
We are blessed in the orderliness and temperance of our Revolution.
Tell that to the thousands of Tories we ran out of the country to Canada after seizing their property during and after the American Revolution.
And those were the lucky ones - The unlucky Tories were lynched, burned to death in their homes, imprisoned, or at best tarred, feathered and ran out of town naked on a rail even in the middle of winter.
A revolution/civil war is not a Sunday concert in the park. If Obama is successful in starting a civil war, he will have opened the gates of hell.