D, i think thats when it ceded to the US.
Answer:Seven Days' Battles, (June 25–July 1, 1862), series of American Civil War battles in which a Confederate army under General Robert E. Lee drove back General George B. McClellan's Union forces and attacked the Northern attempt to capture the Confederate capital of Richmond, Vigrina.Mar 29, 2022
Date: June 25, 1862 - July 1, 1862
Role In: American Civil War Battle of Frederick...
Key People: A. P. Hill Robert E. Lee George B. ...
Participants: Confederate States of America U...
Explanation:
People in other parts of europe wanted more say in their country
