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The BATTLE OF YORKTOWN was perhaps the most important event of the American Revolution. It led to the Patriots overall victory. General WASHINGTON and his troops attacked General CORNWALLIS British army for almost 3 weeks nonstop, until the British surrendered. The FRENCH naval fleet helped the continental army secure this victory.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

according to worldatlas.com, the u.s. has an 86% literacy rate.