You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).

Q: concept: Jehovah answers: ["Jehovah's Witnesses"]

A: when did the name jehovah first appear?
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Q: concept: Michael Jackson answers: ['Rebbie Jackson', 'Tito Jackson', 'Janet Jackson', 'Jermaine Jackson', 'La Toya Jackson', 'Brandon Jackson', 'Marlon Jackson', 'Randy Jackson', 'Jackie Jackson']

A: who were michael jackson's brothers and sisters?
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Q: concept: Abraham Lincoln answers: ['""The Emancipation Proclamation...can remind us in 2013 of all the mistakes we never want to commit again but it can also motivate us to fulfill to an ever greater degree the definitive freedom-sustaining and life-enhancing principles of democracy in living action.""']

A:
when did abraham lincoln free the slaves?
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