Lincoln says that the United States is dedicated to

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Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure.

In this reading:
Score means “twenty”
Conceived means “born” or “created”
Proposition means “idea” or “proposal”
Endure means “survive”

1 answer

In the excerpt from Lincoln's Gettysburg Address, he states that the United States is dedicated to "the proposition that all men are created equal." This highlights the foundational belief in equality and human rights that underpins the nation's identity. The address reflects on the ideals upon which the nation was founded and emphasizes the challenges it faces during the Civil War to uphold those principles.