This was the perfect medium for changing the way most Americans thought about the nation’s founding acts. Lincoln does not argue law or history, as Daniel Webster did. He makes history. He does not come to present a theory, but to impose a symbol, one tested in experience and appealing to national values, with an emotional urgency entirely expressed in calm abstractions (fire in ice). He came to change the world, to effect an intellectual revolution. No other words could have done it. The miracle is that these words did. In his brief time before the crowd at Gettysburg he wove a spell that has not, yet, been broken–he called up a new nation out of the blood and trauma.

–Garry Wills, Lincoln at Gettysburg

The address itself, delivered 150 years ago today.