Which best describes a significant event that occurred during the American Revolutionary War?

james madison wrote the first 10 amendments to the constitution, known as the bill of rights

The battle of Gettysburg occurred in Pennsylvania, causing 15,000 casualties

the emancipation proclamation declared the freedom 3.1 million slaves

france entered the war and sided with the colonist, helping to defeat the British

D?

2 answers

Well, Answer A happened after the American revolutionary war. Answer B and C happened during the civil war. So D is the only one that makes sense.
Yes, D.