After the emancipation proclamation the central goals of the civil war were

To end slavery and break up the Union

Explanation:

The main causes of the outbreak of war were slavery, north-south contrasts, exacerbated southern nationalism at the time, interstate tariffs, which incalculated northern industrialized products to the detriment of southern agricultural products, regional issues, and fop of the war: the election of Abraham Lincoln, Republican, openly pro-liberating slaves in the south. But in short, the major objectives of this conflict were to preserve unity and end slavery.

these civilizations were located around fertile rivers, where they could produce an abundance of crops

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