Conversation so far:
who was the first us president that was assassinated
Abraham Lincoln was the first U.S president Assassinated.
How was Abraham Lincoln assassinated
Booth entered from behind, aimed a .44 caliber Derringer pistol at the back of Lincoln's head, and fired, mortally wounding him.
Where was Abraham Lincoln assassinated
Abraham, Lincoln was assassinated at Ford's Theatre in Washington, D.C

Question: When
Self-contained rewrite: When was Abraham Lincoln Assassinated