help me with 3 and 4 please

Answer: Emancipation Proclamation and Children.
Explanation:
The Proclamation of Emancipation is a key document of the civil war that ensured freedom for African American slaves. It was an important moment of the Civil War, a detail that made a partial turn in the war. During the war, the Union mainly used children as drummers on the battlefields. They were an important segment in the army because they gave certain signals to certain military orders with different rhythms in addition to motivating soldiers. Johnny Clem is the most famous and famous Civil War drummer who ran away from home at nine to serve in the army.