From which document did lincoln draw most of his inspiration for the gettysburg address?

The Declaration of Independence

Explanation:

On  November 19, 1863, at the dedication of the Soldiers' National Cemetery in Gettysburg, Pennsylvania, Abraham Lincoln gave a speech that today is called the Gettysburg Address. Lincoln draw most of his inspiration from his favorite historial document: the Declaration of Independence. "Conceived in Liberty, and dedicated to the proposition that all men are created equal," Lincoln said the Civil War was a test and spoke about the suffering of those who died at Gettysburg in defense of the US Nation.