Answer:
The awnser is the assassination of President Abraham Lincoln.
Explanation:
President Abraham Lincoln died 150 years ago, just days after Gen. Robert E. Lee surrendered at Appomattox, ending the Civil War after four years.
The united states was shaken days after the civil war ended when Abraham Lincoln was killed.
The killing of Abraham Lincoln was one of the major events that shook the United states few days after the end of the war.
John Wilkes Booth who was a famous actor and a Confederate sympathiser killed President Abraham Lincoln 5 days after the surrender of the Confederate army led by General Robert E. Lee.
Learn more about Abraham Lincoln at https://brainly.com/question/19448833
