What was the Emancipation Proclamation? Who wrote it? When?

What was the Emancipation Proclamation?

The nation approached its third year of bloody civil war. The proclamation declared "that all persons held as slaves" within the rebellious states "are, and henceforward shall be free."

Who wrote it?

President Abraham Lincoln issued the Emancipation Proclamation.

When?

January 1, 1863.

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