John Wilkes Booth's pistol used to kill President Abraham Lincoln is displayed at a new exhibit entitled "Silent Witnesses: Artifacts of the Lincoln Assassination" at the Ford's Center for Education and Leadership across the street from the historic Ford's Theatre, in Washington. The exhibit is open to the public until May 25, and coincides with the 150th anniversary of the Lincoln assassination on April 14. Story here. (AP Photo/Andrew Harnik, File)

Question: How much do you know about Abraham Lincoln?