The factor that was a barrier to Italian unity was A. different dialects of Italian were spoken throughout Italy
<h3>Why did it take long to unite Italy?</h3>
The Italians were only united into a single nation in the 1800s and before that had existed as a number of several nation - states such as Genoa, Venice, and Piedmont - Sardinia.
The reason it was so hard to unite them was that there were different dialects of Italian were spoken throughout Italy which led to people identifying with different regions and not wanting to come together centrally.
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Answer:
The immediate aftermath of the battle was enough of a victory to give President Lincoln the confidence to release the Emancipation Proclamation which declared an end to slavery in Confederate territory.
True The Declaration of Independence is a break up letter, and the Consitution is setting a system of government.